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Charlie Hebdo: UK's security committee Cobra to meet Charlie Hebdo: UK's security committee Cobra to meet
(35 minutes later)
The government's emergency committee Cobra is to meet later following the attack by gunmen at the Paris office of satirical magazine Charlie Hebdo.The government's emergency committee Cobra is to meet later following the attack by gunmen at the Paris office of satirical magazine Charlie Hebdo.
Home Secretary Theresa May will chair the gathering of ministers, police and security advisers.Home Secretary Theresa May will chair the gathering of ministers, police and security advisers.
Eight journalists, two policemen, a maintenance worker and a visitor to the office died in Wednesday's attack.Eight journalists, two policemen, a maintenance worker and a visitor to the office died in Wednesday's attack.
Prime Minister David Cameron said he had offered France "any assistance our intelligence agencies can give".Prime Minister David Cameron said he had offered France "any assistance our intelligence agencies can give".
Hundreds of people gathered in Trafalgar Square, central London, on Wednesday evening, in a silent vigil for those killed and injured in Paris.Hundreds of people gathered in Trafalgar Square, central London, on Wednesday evening, in a silent vigil for those killed and injured in Paris.
In a show of solidarity with victims, they held aloft pens, pencils and notebooks.In a show of solidarity with victims, they held aloft pens, pencils and notebooks.
Meanwhile, the Queen has offered "sincere condolences" to victims and their families.Meanwhile, the Queen has offered "sincere condolences" to victims and their families.
Advice for British visitors to France on the Foreign Office website has been amended to read: "A number of people have been killed and injured. If you're in Paris or the Ile-de-France area, take extra care and follow the security advice issued by the French authorities."Advice for British visitors to France on the Foreign Office website has been amended to read: "A number of people have been killed and injured. If you're in Paris or the Ile-de-France area, take extra care and follow the security advice issued by the French authorities."
"There is a high threat from terrorism. Attacks could be indiscriminate," the advice continues."There is a high threat from terrorism. Attacks could be indiscriminate," the advice continues.
'Barbaric attack''Barbaric attack'
A major manhunt was launched for the gunmen and a police operation took place in Reims, north-east of Paris, overnight, but no arrests were made. A major manhunt was launched for the gunmen and a police operation took place in Reims, north-east of Paris, overnight.
Arrest warrants have been issued for Cherif Kouachi, 32, and his brother Said, 34, who police believe to be "armed and dangerous".Arrest warrants have been issued for Cherif Kouachi, 32, and his brother Said, 34, who police believe to be "armed and dangerous".
French Prime Minister Manuel Valls said on Thursday morning that several people had been detained as part of the search for the two men. He added that both suspects had been known to intelligence services.
Another suspect, Hamyd Mourad, 18, was named earlier in a police document, according to media reports. But it was later reported that he had handed himself in to police.Another suspect, Hamyd Mourad, 18, was named earlier in a police document, according to media reports. But it was later reported that he had handed himself in to police.
Speaking at a press conference with German Chancellor Angela Merkel in Downing Street on Wednesday, Mr Cameron said the two leaders had been briefed by MI5 and MI6 on the attack.Speaking at a press conference with German Chancellor Angela Merkel in Downing Street on Wednesday, Mr Cameron said the two leaders had been briefed by MI5 and MI6 on the attack.
He said they also spoke to French President Francois Hollande by phone.He said they also spoke to French President Francois Hollande by phone.
Mr Cameron said: "Obviously all our thoughts are with the French people following the barbaric attack."Mr Cameron said: "Obviously all our thoughts are with the French people following the barbaric attack."
He said: "We should be very clear this day that these values that we have are not sources of weakness for us, they are sources of strength."He said: "We should be very clear this day that these values that we have are not sources of weakness for us, they are sources of strength."
The weekly magazine Charlie Hebdo has courted controversy in the past with its irreverent take on news and current affairs. It was firebombed in November 2011 a day after it carried a caricature of the Prophet Muhammad.The weekly magazine Charlie Hebdo has courted controversy in the past with its irreverent take on news and current affairs. It was firebombed in November 2011 a day after it carried a caricature of the Prophet Muhammad.
Prime Minister's Questions opened with statements about the killings, with Mr Cameron and Labour leader Ed Miliband vowing to defend democracy and press freedom.Prime Minister's Questions opened with statements about the killings, with Mr Cameron and Labour leader Ed Miliband vowing to defend democracy and press freedom.
In the Commons, Mr Cameron said: "We stand squarely for free speech and democracy. These people will never be able to take us off those values."In the Commons, Mr Cameron said: "We stand squarely for free speech and democracy. These people will never be able to take us off those values."
Mr Miliband told MPs: "We stand in solidarity with the people of France against this evil terrorist attack by people intent on attacking our democratic way of life and freedom of speech."Mr Miliband told MPs: "We stand in solidarity with the people of France against this evil terrorist attack by people intent on attacking our democratic way of life and freedom of speech."
Deputy Prime Minister Nick Clegg described the killings as a "barbaric attack on freedom of speech".Deputy Prime Minister Nick Clegg described the killings as a "barbaric attack on freedom of speech".
The UK terror threat level was raised from substantial to severe earlier this year amid fears over the risk posed by Britons fighting with militants abroad.The UK terror threat level was raised from substantial to severe earlier this year amid fears over the risk posed by Britons fighting with militants abroad.
The government's Counter-Terrorism and Security Bill was introduced to Parliament last month. Speaking during a Commons debate on the government's Counter-Terrorism and Security Bill on Wednesday, the home secretary said the attack showed the threat in countries across the world was "grave and relentless".
Speaking during a Commons debate on the bill, the home secretary said the attack showed the threat in countries across the world was "grave and relentless". The bill, in its final Commons stages, contains measures to restrict the movements of Britons suspected of travelling abroad for terrorism and strengthen terror-monitoring powers in the UK.