French forces storm two separate hostage sites in and around Paris on 9 January, killing three hostage takers
Charlie Hebdo suspects Said and Cherif Kouachi killed at a printing warehouse north of Paris
One employee trapped in the printing works was rescued
Hostage-taker, named by officials as Amedy Coulibaly, also killed in assault on Paris supermarket
Four hostages killed and another four seriously injured at the supermarket, officials say
Paul in Exeter emails: Nick Clegg mentions 'people have to be free to offend each other'; this is a dangerously grey comment. What about hate speech? Swear words in the street? Homophobic chanting in public? Is this to be allowed? Maybe we need to rethink what constitutes hate speech.
UK Chancellor George Osborne says the UK is fully behind the French people: "The whole British nation stands alongside the people of France in this tragedy. I think there's been a huge outpouring of solidarity, not just in France but around the world. We've seen lots of very moving demonstrations in our country of support for the French people. And this is an attack on all of our way of life. This is an attack on our values - the freedom of the press, the liberty of our societies - so we will do everything we can together to defeat these evil terrorists and defend our values, defend our way of life and that fight continues."
The dimming of the Eiffel Tower lights will happen as a demonstration expected to gather thousands will be in full swing on the other side of Paris, in Republique Square.
France's Eiffel Tower is to go dark in a sombre tribute to the 12 people killed in the attack on Charlie Hebdo. The lights normally illuminating the 324-metre (1,063-feet) tall monument will go out at 20:00 local time (19:00 GMT), according to the office of Paris Mayor Anne Hidalgo.
Image source, ANNE-CHRISTINE POUJOULAT/AFP
Image source, Srdjan Zivulovic/ReutersThe outpouring of emotion, both in France and elsewhere, in the wake of Wednesday's attacks has provided some striking images. This picture gallery tells the story of the day.
Image source, Getty ImagesBritish Transport Police statement: "Since 2012, we have deployed armed officers within London. The safety of rail passengers and staff is of paramount importance to us, and we want to provide a reassuring, visible armed presence to deter terrorism on the rail network. In light of the events in Paris, we have increased patrols at St Pancras, in order to maintain and provide enhanced visibility and reassurance to the public. We keep our security arrangements under constant review."
Image source, PAUK Deputy Prime Minster Nick Clegg on his LBC radio phone-in show says in a free country there can be no right not to be offended: "They have killed cartoonists who have done nothing more than draw drawings which they so happen to find offensive. At the end of the day, in a free society people have to be free to offend each other. You cannot have freedom unless people are free to offend each other. We have no right not to be offended. And that fundamental principle of being free to offend people is exactly what was under threat by these murderous barbarians."
A statement issued by a number of British imams says: "Following such a shocking event, the Imams of the UK voice their outrage and strongly condemn such brutality in the strongest terms. Nothing is more immoral, ugly and offensive to the Prophet Muhammad and insulting to Muslims than murder in his name."
Image source, Ben MaxwellJournalist Ben Maxwell emailed his cartoon in response to the killings in Paris.
Image source, AFPFrench police special forces have been seen in Corcy, near Villers-Cotterets, north-east of Paris.
Image source, ReutersThe pencil has become a symbol of defiance during silences to mark the Charlie Hebdo massacre.
Pope Francis celebrated Mass for the victims of the Charlie Hebdo attack in the Saint Martha's Chapel adjacent to St Peter's Basilica in the Vatican.
He said: "The attack makes us think of great cruelty, human cruelty; of such terrorism, both isolated terrorism and state terrorism. The cruelty of which man is capable! Let us pray, in this Mass, for the victims of this cruelty. So many of them! And let us also pray for those who perform these cruel acts, so that the Lord might transform their hearts."
Rob from Essex emails: Is there not an irony that is being missed here, in that anyone that wants to attempt to defend the actions or the reasons behind the shootings can do so using the right of free speech on sites like this? Which is the exact opposite of the motives behind the attacks.
@TellMamaUK, external has tweeted, external this infographic on suspected anti-Muslim attacks and incidents in France that have been reported following the Charlie Hebdo attack.
Image source, TwitterGiles Bradley emails: While no admirer of Islam, I think it's crass and gratuitous to mock something or someone millions hold dear. What is achieved by this, apart from more hatred? Plain stupid.
Roland Watson emails: Surely this attack brings into focus not only the right of freedom of speech but the responsibility of it too?
French actress and comedian Michele Laroque tweeted, external this image combining the names of the Charlie Hebdo attack with the magazine's title.
Image source, Twitter
Police have been seen in the area of Longpont, a village near to a petrol station reportedly robbed by the two Charlie Hebdo suspects on Thursday.
Image source, Cassandre BalbarCassandre Balbar: "I'm a French musician in London but my second passion is drawing. I was influenced by all of those strong French cartoonists my whole life, especially Cabu. They are part of us like no one else can be. Drawing seems to be the only way to express how I feel. Died for Freedom"
Piers Scholfield
BBC News Europe Producer
Longpont Police have blocked the road running from the N2 to the village of Longpont. We're told special forces are in the area and helicopters have landed in a nearby field.