A man has been beheaded and at least one other person injured in a suspected Islamist attack on a factory near the French city of Lyon, BBC reported.
Several small explosive devices were also set off at the Air Products factory in Saint-Quentin-Fallavier, sources said.
The alleged attacker is said to have been carrying an Islamist flag, which was found nearby.
A man has been arrested, officials say.
Interior Minister Bernard Cazeneuve is said to be on his way to the scene.