8 JAN 2015: The two main suspects in the Islamist attack on Charlie Hebdo magazine in Paris are said to have robbed a service station in the north of France.
Anti-terrorism police have converged on an area near Villers-Cotterets where the gunmen were reported by French media to have stolen food and petrol.
France has observed a minute’s silence for the 12 people killed at the office of the satirical magazine.
Earlier, a gunman shot dead a policewoman south of Paris and fled.
It is unclear if the attack in Montrouge, in which a second person was seriously injured, was linked to the Charlie Hebdo shooting, but French prosecutors say they are treating it as a “terrorist act”, AFP reports.
The manager of the service station that was robbed on the RN2 road, in the Aisne region, at about 10:30 (09:30 GMT) said the attackers fit the description of the two men, and were heavily armed with Kalashnikovs and rocket-propelled grenade launchers.
The two prime suspects, Cherif and Said Kouachi, are said to have driven off in the direction of Paris in a Renault Clio car, apparently the same vehicle hijacked in Paris soon after the Charlie Hebdo attack.
According to French commercial channel BFMTV, police are monitoring all of the main entry roads into the capital.
A third man who was initially sought handed himself in to police in the eastern city of Charleville-Meziere late on Wednesday. It is not yet clear if he is regarded as a suspect.
There is obviously a sense of unease in Paris, with another fatal armed attack so soon after the murders at Charlie Hebdo. But most people are also going about their daily business – sending the message that life goes on.
On this day of national mourning, though, with church bells ringing throughout the land, there has been no time for reflection for the police and security services. The fear is of further copycat attacks, or that those already involved could try to strike again.
For now that is the focus of official efforts – a huge manhunt is under way, with the police hoping that they may be closing in on the two leading suspects in the Aisne region, north-east of Paris.
Security has also been increased at public places to try to provide extra reassurance. Calls for calm, and above all for unity, will continue to be heard.
Meanwhile, the lawyer for Charlie Hebdo, Richard Malka, confirmed thatÂ next week’s edition of the magazine would go ahead on Wednesday and would have a print run of one million, instead of the normal 60,000 copies.
The gunman involved in the separate attack in Montrouge was reportedly armed with a machine-gun and a pistol and wore a bullet-proof jacket.
A local resident, Ahmed Sassi, said he saw a man dressed in dark clothes run up and shoot the female police officer “at point blank range”.