Russia has stepped up its attacks on Islamic State targets in Syria, dispatching long-range bombers and firing a volley of cruise missiles.
The strikes follow a statement by Russia's security chief that a bomb brought down a Russian airliner over Egypt last month, killing 224.
Sinai Province, an IS-linked Egyptian jihadist group, said it downed the jet.
Russian officials say the country's air force has flown 2,300 missions over Syria in the past 48 days.
In response to Friday's terror attacks in Paris, which killed 129 people and wounded a further 352, Russian warships have been ordered to work "as allies" with their French counterparts in the Mediterranean.
Speaking at a security meeting held on Monday night, Russian President Vladimir Putin said the country's air campaign in Syria would intensify.
"The combat work of our aviation in Syria should not only be continued, but it should be intensified to make the criminals understand that vengeance is imminent," he said.
Sinai Province said in a statement that the attack on the Metrojet airliner was a "response to Russian air strikes that killed hundreds of Muslims on Syrian land".
On Tuesday, FSB chief Alexander Bortnikov said that "traces of foreign explosives" were found on the wreckage of the plane. Mr Putin vowed to "find and punish" those behind the attack.
As well as targeting IS, Russian warplanes are supporting Syrian government forces against various rebel groups - a source of tension between Mr Putin and his US and UK counterparts.
France has also vowed to intensify air strikes against IS after Friday's attacks in Paris were linked to the group. At least 129 people were killed in several coordinated attacks in the city and a further 352 injured.
Both Russian and US officials have said they will coordinate closely with France to target IS in the wake of the attacks in Paris.
31 Oct - Sharm el-Sheikh, Egypt Plane crashes killing all 224 on board. Russia says a bomb caused the crash and an IS affiliate says it was responsible.
10 Oct - Ankara, Turkey Suicide bombers kill 102 people at peace rally. Turkey blames IS, but no group claims the attack.
They are a loose collective of hackers who once appeared to have no greater purpose than having some mischievous anarchic fun.
But
in recent times Anonymous has got serious. Earlier this month the
collective targeted the Ku Klux Klan, publishing online a list of
alleged sympathisers of the white supremacist group.
Now they are
pursuit of a much bigger prey, so-called Islamic State (IS). In the wake
of the Paris attacks, Anonymous launched what it called Operation
Paris, with the aim of tracking down members of the terrorist group.
Earlier today the operation's Twitter account @opparisofficial trumpeted
their first success, proclaiming that more than 5,500 IS Twitter
accounts had been taken down.
But what are the aims of this
campaign, and is it likely to have any impact at all on its target?
Security experts are somewhat sceptical, pointing out that the
intelligence agencies monitoring IS might prefer to see its operatives
remain active on social media where they can be seen, rather than have
them disappear into the dark web.
I asked the person behind the
Operation Paris account for a phone interview. I was told that was
impossible - but he (he appears to be an Italian man) agreed to provide
written answers to my questions. Bear in mind that it is impossible to
know just who is behind the Twitter account and whether they really
command a huge army of hackers - but here is how the conversation went: What are the aims of your operation?
Our
main goal in this operation is to identify the perpetrators of the
Paris terror attacks and all terrorist organisations linked to them,
acquire intel to dig deep into the roots of their manpower, disable
their propaganda and stop their reach on social media, release their
information to the public, and flag down any threat to mankind. How will you measure its success?
With
#OpParis as a large scale op, we make use of our morale, experience,
and our efficiency in effectively finishing off ISIS, not just in the
Internet, but ISIS itself. We will not settle down by just simply
putting ISIS off the internet grid. Are you confident about the accuracy of your claims about IS members?
We
run effective verification of intel, and make sure that our leads are
legitimate before we attack them. In some cases, they could be
sympathisers or followers that republish horrifying display. We
guarantee that we are not making false accusations to those who aren't
actually involved. What happens if you post the name of someone who turns out not to be involved?
It
is difficult that we make a visible profile without having the absolute
certainty, we do not share information as soon we have them in hand and
we spend countless hours to investigate and verify it. Isn't
it better for the fight against IS if its members talk openly on
Twitter where the security services can see them, rather than being
driven underground?
The propaganda of ISIS is based on
advertising their actions. They want to strike terror with their name,
with bloody images, with violent videos. We can not fight them with guns
and rifles, stopping their propaganda is an effective way to weaken
their manpower and their presence in the Internet. Disrupting their
communications makes it difficult to organise their attacks in a fluid
manner.
India's Supreme Court has ordered the removal of a wood-burning crematorium near the Taj Mahal to protect the famous monument to love from pollution.
The court acted after a judge warned the crematorium's smoke could damage the 17th Century marble mausoleum.
Hindus, who make up the majority of India's population, traditionally use wood in cremation pyres.
The court suggested Uttar Pradesh state authorities could move the crematorium or build an electric one instead.
The state government's advocate general agreed.
"It is a very good suggestion and I totally agree with the judge's letter," Vijay Bahadur Singh said, the Indian Express reports. "Give me a fortnight and I will come back to this court with a solution."
Crematorium staff, however, denied the pollution charges.
"Ghee, camphor, sandalwood paste and cow dung cakes used in the pyres are instead helping enrich the environment," manager Sanjay Singh told the Times of India.
The Taj Mahal was completed by the Emperor Shah Jahan in 1653 as a mausoleum for his third and favourite wife, Mumtaz Mahal, who died giving birth to their 14th child.
The monument's complex structure of white marble domes and minarets inlaid with semi-precious stones and carvings is considered the finest example of Mughal art in India.
In 1983, the Taj Mahal became a Unesco World Heritage site and attracts millions of visitors each year.
But it also has to contend with pollution from the busy and industrial city of Agra and a nearby oil refinery.
Over the years its gleaming white marble has been gradually turning yellow.
Music photographer Emmanuel Wino has
shared his pictures of the Eagles of Death Metal concert which came
under attack at the Bataclan theatre in Paris on 13 November.
Gunmen entered and killed 89 people, critically injuring more than 100.
Mr Wino says that before the attack, the theatre was full of smiles that should not be forgotten.
As a result, he decided to share pictures of the Eagles of Death Metal on his Facebook page.
Wino was among seven or eight photographers taking pictures of the concert.
In an interview with France's Les Inrocks
(in French) magazine, Wino said he had come down from the first floor
to the theatre bar to join friends, adjacent to the emergency exit.
He said he had heard screams, followed by a stampede of people running for the exits.
"People were screaming for us to leave, to run away," he said. "Then I heard the shots. Twenty, thirty, fifty - I do not know."
He said he thought it was a shooting, but not a terrorist act. "I thought it was the act of a madman," he told the magazine.
Wino said he had made a quick escape, without seeing the attackers.
Eagles
of Death Metal band members were unhurt, but Nick Alexander (not
pictured), a Briton selling merchandise at the gig, was among those
killed.
With a camera memory card full of pictures, Mr Wino said that initially he had wanted nothing more to do with it.
But slowly the shock wore off and after talking with friends, he said
he felt it would be important to remember the positive aspects of that
night.
"I wanted to remember the smiles and the rock and roll, and that we were all there to party," he said.
He decided to publish the photographs on his Facebook account, for all
to see and use. The photos are of a happy crowd, arms in the air, smiles
on their faces.
Mr Wino said he had received hundreds of messages within hours.
"People thanked me because they had seen someone close to them on the photos, looking like they were having fun."
David Cameron has promised a "comprehensive strategy" to win MPs' backing for bombing Islamic State militants in Syria as well as Iraq.
The prime minister told the Commons the Paris attacks had strengthened the case for air strikes, suggesting there could be a fresh vote on the issue.
He wanted to "do the right thing for our country", and hit the "head of the snake" of IS in Raqqa, Syria, he said.
MPs rejected strikes against Syrian government forces in a 2013 vote.
Labour leader Jeremy Corbyn said any military response should have the support of the international community and legality from the United Nations.
'Growing threat'
Two years ago, MPs voted against possible UK military action against Syrian President Bashar al-Assad's government to deter the use of chemical weapons.
Mr Cameron promised action against IS would not be extended to Syria without Parliament's consent - and said he would only hold another vote when he was sure of a "consensus" among MPs.
Downing Street has stressed it is not setting out a timetable publicly for a Commons vote yet, says BBC political correspondent Chris Mason.
An "important first step" would be setting out his case in a personal response to a recent Foreign Affairs Committee report, the prime minister said - with sources indicating this would be done before the end of the month.
Addressing the Commons on Tuesday, Mr Cameron said that British planes had attacked 350 targets in Iraq and offered support to their allies' action over Syria.
But he said Islamic State - also known as Isis, Isil or Daesh - did not recognise or respect the border between the two countries.
"It is in Syria, in Raqqa, that Isil has its headquarters and it is from Raqqa that some of the main threats against this country are planned and orchestrated," he said.
Analysis
Image copyrightCpl Neil Bryden/RAF/MoD Crown Copyright
By BBC political editor Laura Keunssberg
David Cameron is pushing this right back up the agenda after months where the parliamentary arithmetic was not certain enough for him to risk a humiliating defeat.
It still is not.
The anti-action position of the Labour leadership makes another vote far from a forgone conclusion.
There is deep concern about taking action unless it's part of wider efforts to bring peace to Syria.
That's why the prime minister has not committed to holding a vote asking for backing for air strikes yet, but instead is committing to remake the case more firmly and more comprehensively to try once more to persuade MPs.
Mr Cameron said: "Raqqa, if you like, is the head of the snake. Over Syria we are supporting our allies - the US, France, Jordan and the Gulf countries - with intelligence, with surveillance and with refuelling. But I believe, as I have said many times before, we should be doing more.
"We face a direct and growing threat to our country and we need to deal with it not just in Iraq but in Syria too."
He said Britain could not protect its people "by sitting back and wishing things were different", or letting other countries "carry the burden".
Mr Cameron's speech came after IS said it was behind Friday's attacks in which 129 people were killed in bars, restaurants, a concert hall and at a stadium in Paris. The victims included Briton Nick Alexander from Essex.
David Cameron told the Commons he would be setting out a "full spectrum" approach, which would include military action, counter-terrorism, humanitarian support and strategies for "defeating the poisonous narrative of extremism".
Responding to the prime minister's statement, Labour leader Jeremy Corbyn said nothing could ever justify the targeting of civilians but warned that any response should not feed a cycle of violence and hatred.
He told Mr Cameron: "Can I therefore welcome your comments at the G20 yesterday when you said, 'I think people want to know there is a whole plan for the future of Syria, for the future of our region and it's perfectly right to say a few bombs and missiles won't transform the situation.'"
BBC assistant political editor Norman Smith said many Labour MPs were unhappy with Mr Corbyn's indication that he would oppose almost any military intervention.
Downing Street could be hoping to capitalise on disarray in Labour circles on the issue and win the support of many Labour MPs in any future vote, he added.
Among other recent developments:
Mr Cameron confirmed he would attend the football match between England and France at Wembley Stadium later, where armed police are being deployed. Prince William and London Mayor Boris Johnson are also expected to attend
Chancellor George Osborne announced a doubling of funds to fight cybercrime to £1.9bn over five years, warning that Islamic State hoped to launch cyber-attacks on UK targets
RAF Tornados had attacked a group of more than 30 IS fighters in Iraq on Monday, and an RAF Reaper drone had provided surveillance for a French air strike on an IS target in Syria on Sunday, the MoD said
Metropolitan Police Commissioner Sir Bernard Hogan-Howe says he has increased the number of armed response vehicles in London by a third, with a "full team" ready to respond 24 hours a day
Mr Corbyn says he supports any "strictly necessary force" needed to protect the UK in a terrorist attack following criticism of his opposition to a "shoot-to-kill" policy
Labour MP Mike Gapes, a former chairman of the Commons Foreign Affairs Committee, said he agreed with the prime minister, and that it was illogical not to attack IS in Syria.
"It's like in World War Two, bombing Hamburg, but not attacking Berlin," he said.
However, there was opposition from some SNP and Liberal Democrats MPs.
Alex Salmond, the SNP's foreign affairs spokesman, said the government had not yet made a convincing case that British military intervention in Syria would make "any material difference".
He said a UN mandate would be a condition for the SNP's support in any vote.
Liberal Democrat leader Tim Farron warned against being dragged into another Iraq-style war, saying that any action needed to be effective rather than a "knee-jerk" reaction.
