1 Dead, 3 Injured in Knife Attack in German Train Station

One man was killed and three people injured in a knife attack at a train station in southern Germany Tuesday morning, the Bavarian Criminal Office said.

Police have arrested a 27-year-old German man in connection with the attack, a police spokesman said, adding that a political motive could not be ruled out.

The attack happened shortly before 5 a.m. local time (11 p.m. ET Monday) in Grafing, 23 miles (37 kilometers) east of Munich, officials said.

The dead man, a 50-year-old, was inside a train bound for Munich when he was stabbed, police said. He later died at a hospital.