The Pentagon says one U.S. military service member was injured Friday, apparently while trying to subdue a gunman who opened fire on a high-speed train traveling from Amsterdam to Paris.

The Pentagon says the service member does not have life-threatening injuries.

Officials say three people were injured overall as two Americans subdued the shooter.

French Interior Minister Bernard Cazeneuve, speaking in Arras in northern France, where the suspected was detained, also said one American was hospitalized with serious wounds. The names of the two Americans were not released.

An official with the French police union Alliance said the suspect is a 26-year-old Moroccan.

A spokesman for national railway operator SNCF said the suspect was armed with an automatic rifle and a knife.