Counter-terrorism units launched coordinated raids across France and arrested at least nine people in connection with the deadly Paris attacks, a media report said on Monday.
Monday's early morning raids took place in Calais, Toulouse, Paris, Jeumont and Grenoble where police blocked streets and searched houses looking for suspects involved in Friday's attacks, which killed at least 129 people and wounded hundreds more, Al Jazeera reported.
Al Jazeera's David Chater, reporting from Paris, said about 200 members of police tactical units surrounded an address in Toulouse. Ammunition and a large amount of cash were found at one of the locations.
He said 20 police vans were used in the raid in Jeumont on the French-Belgian border where a house was searched.
French Prime Minister Manuel Valls confirmed that the raids were linked to Friday's events and warned more attacks were being planned.
"We know that operations were being prepared and are still being prepared, not only against France but other European countries too," said Valls.