Londoners sing French national anthempublished at 19:40 GMT 7 January 2015
Image source, ReutersPeople attending a rally in Trafalgar Square, central London, have been singing La Marseillaise, France's national anthem.
Summary
Gunmen have attacked the offices of French magazine Charlie Hebdo in Paris, killing 12 people including the editor and celebrated cartoonists
The hunt is on for three suspects, named by police as Hamyd Mourad and brothers Said Kouachi and Cherif Kouachi.
It is the deadliest terror attack in France since 1961 during the Algerian war
President Hollande said it was an act of "extreme barbarity", with many foreign leaders also condemning the attack
In 2011, the satirical publication was firebombed after naming the Prophet Muhammad as its "editor-in-chief"
Londoners sing French national anthempublished at 19:40 GMT 7 January 2015
Image source, ReutersPeople in Paris hold up their pens in protestpublished at 19:37 GMT 7 January 2015
Image source, Sruthi GottipatiJournalist Sruthi Gottipati took this photo, external in Paris, France.
Eric Albert, French journalistpublished at 19:36 GMT 7 January 2015
Eric Albert tells the BBC News Channel he fears what will happen over the coming days in France due to what he calls the "malaise" afflicting society.
"There will be unity for a while because of the horror and shock," he said. "What's going to happen after that?"
President Francois Hollande speaking:published at 19:08 GMT 7 January 2015
President Hollande, in a brief address, said that "nothing can divide us, nothing can separate us".
He added: "We will win. Nothing will make us renounce our determination. Long live the republic. Long live France."
Image source, ReutersNational day of mourningpublished at 19:05 GMT 7 January 2015
President Francois Hollande is making a televised address to the nation. He has announced a national day of mourning on Thursday.
Rallies across Europepublished at 18:55 GMT 7 January 2015
Rallies have been taking place across Europe in support of Charlie Hebdo. From top, a protester in Lausanne, Switzerland; the European Parliament in Brussels; Trafalgar Square in central London; a rally outside the French embassy in Madrid.
Image source, EPA
Image source, Reuters
Image source, PA
Image source, AFPAFP holds minute silence for Charlie Hebdopublished at 18:51 GMT 7 January 2015
Agence France Presse tweets, external pictures from inside their newsroom in Paris, where journalists held a minute's silence holding "Je Suis Charlie" posters:
Image source, AFP
Image source, AFP
Image source, AFPGoogle's black ribbonpublished at 18:28 GMT 7 January 2015
Google France has added a black ribbon to its homepage following today's attacks.
Image source, GoogleCartoonists respond to Charlie Hebdo attackpublished at 18:24 GMT 7 January 2015
A number of cartoonists have drawn images responding to today's attack on Charlie Hebdo, expressing support and solidarity with the magazine and principles of free speech and freedom of expression.
Image source, Twitter
Image source, Twitter
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Image source, TwitterAttack did 'not come out of blue'published at 18:16 GMT 7 January 2015
BBC Security Correspondent Frank Gardner notes that the attack has not come out of the blue. The journalists behind Charlie Hebdo had plenty of enemies, he says, and its decision to publish a string of cartoons deemed offensive by some Muslims had made it a target for Islamist extremists.
Get involvedpublished at 18:15 GMT 7 January 2015
Orlando: Over a thousand people have said they will be in Trafalgar Square from 6pm this evening. I think it could be a lot more as not everyone has had time to log into FB. I'll be there with 4 friends.
UN Security Council condemns attackpublished at 18:10 GMT 7 January 2015
The United Nations Security Council has joined the chorus of condemnation, calling the attack "barbaric and cowardly".
Postpublished at 18:08 GMT 7 January 2015
The Globe and Mail's Mark MacKinnon, external took this picture at the Place de la Republique in Paris, where crowds are gathering to express solidarity with the magazine:
Image source, Mark MacKinnonSteve Bell, Guardian cartoonistpublished at 17:59 GMT 7 January 2015
Steve Bell tells BBC News channel: "We've got to stand up for the right to take the piss out of these monsters, these idiots, these fools, these posturing maniacs who strut around in their black gear as a kind of death cult trying to frighten us all."
French papers carry black bannerspublished at 17:59 GMT 7 January 2015
Websites of major French dailies, including Liberation, external, Le Monde, external, and Le Figaro, external, carry black banners expressing solidarity with Charlie Hebdo by using the #JeSuisCharlie hashtag which is trending on Twitter.
Image source, Le MondeFrench prosecutor seeks arrests 'as soon as possible'published at 17:57 GMT 7 January 2015
Prosecutor Francois Molins declines to give details of the investigation:
"The idea is to keep confidentiality and make sure this inquiry is successful, so we have to try to arrest the individuals that committed these murders as soon as possible."
Image source, AFPSamantha Power, US ambassador to the United Nationspublished at 17:56 GMT 7 January 2015
tweets:, external Terrorist attack on #CharlieHebdo, external is despicable assault on our societies/values. Deepest sympathies w/ victims' loved ones & French ppl.
Mark MacKinnon, Canada's Globe and Mail newspaperpublished at 17:52 GMT 7 January 2015
tweets, external: "Hardest thing to find in Paris tonight is a copy of #CharlieHebdo, external. Sold out at every newsstand I've visited."
Charlie Hebdo website says "Je Suis Charlie" in multiple languagespublished at 17:48 GMT 7 January 2015
The Charlie Hebdo website has published a pdf file translating the solidarity message, external "Je suis Charlie" into several languages, including Arabic.
Image source, Charlie Hebdo#CharlieHebdo demonstration in Nicepublished at 17:47 GMT 7 January 2015
Image source, Robin Jouan@Robin ANEMF took this photo, external of a demonstration in Nice, France.