Postpublished at 16:27 Greenwich Mean Time 9 January 2015
An assault group attacking the print works north-east of Paris, where the Kouachi brothers were holding at least one hostage until several minutes ago.
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
Julia Macfarlane, Sarah Fowler, Thom Poole, Stephen Robb, Yaroslav Lukov, Aidan Lewis, Kerry Alexandra and Bernadette McCague
An assault group attacking the print works north-east of Paris, where the Kouachi brothers were holding at least one hostage until several minutes ago.
French police special forces are pictured here approaching the supermarket in Porte de Vincennes, Paris.
AFP is reporting that the Kouachi brothers' hostage has been freed and is safe following a police assault on the warehouse in Dammartin.
Police have been seen storming the supermarket, with one woman seen leaving, AP reports. Women and children are believed to be among the hostages held inside the building.
Christian Fraser
BBC News, Paris
We just heard five explosions coming from the direction of the supermarket... then the sirens started wailing in this part of Paris but so far we have not heard any gunfire, just five loud explosions.
AFP is reporting that a source says the Charlie Hebdo suspects, the Kouachi brothers, have been killed.
Five loud explosions have been heard at the hostage site in eastern Paris.
Hélène from Paris emails to say: "I'm a bit disappointed by news programmes around the world who encourage people to record all the secret moving of the security men. I really don't understand why TV programs are showing all the movements of the police. Everyone, even bad people, can see those images."
The BFMTV news channel has broadcast live footage of a helicopter from the French emergency services landing in the area. It is as yet unknown if anyone has been injured in the security operation.
AFP news agency reports an official source saying that French commandos have launched an assault on the site of the siege in Dammartin-en-Goele.
Live TV footage from the scene shows smoke rising from the building after what appears to be another small explosion. At least two figures dressed in black are seen emerging on the rooftop of the building.
The BBC's Chris Morris tells BBC World that explosions may have come from stun grenades at the printing warehouse where the Kouachi brothers are holding a hostage.
Chris Morris
BBC News, Dammartin-en-Goele
There was a sudden burst of intense gunfire lasting about a minute, several explosions as well as possibly grenades, more gunfire and now it has gone quiet again. We are a few hundred metres from the building.
Smoke has also been seen coming from the building where the Charlie Hebdo suspects are holed up, Reuters reports.
The BBC's Imelda Flattery reports that shooting is erupting now at the warehouse in Dammartin.
tweets:, external French Interior Ministry says more than 80,000 personnel now on the ground, handling two hostage situations.
Surviving Charlie Hebdo staff, guarded by police, arrive at the offices of Liberation newspaper.
Israel's Foreign Minister Avigdor Lieberman says his government is following the situation in Paris "with concern".
"The terrorist offensive taking place over the past three days," he continues, "is not only against the French people or France's Jews but against the entire free world."
French special forces are poised on the rooftop of a building near the printing house in Dammartin-en-Goele, where the two brothers suspected of the Charlie Hebdo attack are now cornered.
The hostage crisis taking place simultaneously outside the city is mapped here: