The identities of the attackers and motive for the attack are unclear.
Paris: Two attackers seized hostages in a church near the Normandy city of Rouen on Tuesday, killing one hostage by slitting his throat before being killed by police, a security official said.
The identities of the attackers and motive for the attack are unclear, according to the official, who was not authorized to be publicly named.
Anti-terrorism investigators have been summoned in the case, Brandet said. The incident comes as France is under high alert after an attack in Nice that killed 84 people and a string of deadly attacks last year claimed by the Islamic State group.
France is also under a state of emergency and has extra police presence in the wake of the July 14 Nice attack.