An anti-terrorist police assault was underway in northern Paris suburb of Saint-Denis for hunting down the ninth suspect of the Paris attacks, BFMTV reported on Wednesday.
The operation targets Abdelhamid Abaaoud, a Moroccan-origin Belgian jihadist believed to be the mastermind of Friday night's attacks in the French capital, Xinhua reported.
So far three suspects have been arrested and some police officers have been injured in the operation, the report said.
Witnesses told BFMTV they heard "explosions" and "gunshots".
The operation was underway in the "very centre" of the city, Saint-Denis Mayor Didier Paillard told BFMTV, nothing that residents are advised to stay at home.
Public transport was suspended in the operation zone.