The manhunt for the two men responsible for the Charlie Hebdo attack and slaying of 12 people in Paris is intensifying with police sealing off the French village of Crepy-en-Valois.

The suspects robbed a petrol station a few hours ago.

The two suspects, Cherif Kouachi, 32, and Said Kouachi, 34, were spotted in the area after holding up a petrol station.

CNN reports that the wanted brothers held up a petrol station demanding food and petrol.

The manager of the petrol station said that the attackers fitted the description of the two men, and were heavily armed with Kalashnikovs and rocket-propelled grenade launchers.

The area is now flooded with police, roadblocks and helicopters as they search for the fugitives. Hundreds of elite officers are combing nearby fields and woodland.

Cherif Kouachi, 32, and Said Kouachi, 34,

Earlier France’s Prime Minister Manuel Valls said he feared the Islamist militants who killed 12 people could strike again.

The interior ministry in France has confirmed that seven people have been arrested in connection with the investigation so far, including 18-year-old Hamyd Mourad who turned himself in to police after seeing his name mentioned on social media.

The victims have now all been named:

Meanwhile there has been a second terror attack overnight this time a man dressed in black shot and killed a female police officer in the Paris suburb of Montrouge, after his vehicle was stopped for a check. Authorities are calling the Thursday morning ( local time) killing a terror attack, but have not connected it to Wednesday’s Charlie Hebdo attack.

The policewoman who was killed has been named as Clarissa Jean-Philippe.