Police have carried out a series of anti-terror raids across France and Belgium in the wake of the Paris attacks.
French media also reported that a rocket launcher was seized during raids in Lyon, in which five arrests were said to have been made.
Last night an international arrest warrant has been released for a man believed to have been involved in the Paris attacks, which claimed 129 lives.
Belgium-born Abdeslam Salah is described by officials as "dangerous".
The 26-year-old - one of three brothers believed to be involved in the killings in central Paris - rented a black Volkswagen Polo used by a group of hostage-takers who left at least 89 people dead inside the Bataclan concert hall, an official said.
Salah was questioned and released by police just hours after the massacre, four French officials said.
Last night it was announced France had conducted air strikes on the IS-controlled city of Raqqa in northern Syria, the French Defence Ministry confirmed.
A Frenchman wanted in connection with the Paris attacks has reportedly been arrested in Brussels.
Salah Abdeslam was captured alive during a raid in the Molenbeek district of the Belgian capital.
Police reportedly used tear gas to help them arrest Abdeslam.
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