One man was killed and three others injured in a knife attack at a German railway station outside Munich Tuesday morning.
Police said they have arrested a 27-year-old German in connection with the attack, which took place around 5 a.m. local time at the station in the small town of Grafing, about 38 kilometers (23 miles) east of Munich.
Prosecutors have said they believe the man had "an apparent Islamist motive". Local media report witnesses heard the assailant shout "Allahu Akbar (God is great)" during the attack.
The "assailant made remarks at the scene of the crime that indicate a political motive -- apparently an Islamist motive," Ken Heidenreich, spokesman for the prosecutor's office, told AFP. "We are still determining what the exact remarks were."
One of the victims, a 50-year-old man, later died of his wounds in a hospital, Heidenreich said. The names of the other victims, men aged 43, 55, and 58, have not been released.
No more information about the assailant or his motives has been released.
"We can say very little at the moment about the background," Karl-Heinz Segerer, a spokesman for Bavaria's state criminal police office said.
This marks the third knife attack in Germany with an apparent Islamist motivation since September.