A man who was critically injured after a stabbing at a railway station near Munich has died in hospital, German police have said.
Three other commuters were also wounded in Grafing by a man who was reportedly shouting "allahu akbar" during the attack.
"The assailant made remarks at the scene of the crime that indicate a political motivation -
apparently an Islamist motive. We are still determining what the exact remarks were," a spokesman for the investigation said.
It is believed the 27-year-old suspect, who was arrested at the scene, had used a knife with a 10cm blade.
The man apprehended is a German national who was not known to the police and did not live in the region.
Prosecutors have said the alleged attacker is "not very co-operative".
Sky's Mark Stone reports that investigators have not confirmed whether it was a terror attack at this stage.
It is believed all of those injured in the stabbing, which occurred shortly before 5am (4am UK time), were men.
Initial reports from a Bavarian radio station had suggested that
four people were left with life-threatening injuries.