A spokesman for France's interior ministry says three people were wounded in a shooting on a high-speed train traveling from Amsterdam to Paris Friday.
Speaking on French television BFM, Pierre-Henri Brandet says a suspect is in custody and the train has been evacuated.
Brandet says the motivation for the attack is unknown.
Christophe Piednoel, a spokesman for national railway operator SNCF says the suspect was armed with an automatic rifle and a knife.
France's interior minister Bernard Cazeneuve is en route to the Arras, 115 miles (185 kilometers) north of Paris, where the train stopped after the attack.