A man has attacked passengers with a knife at a train station in the Munich area in southern Germany, leaving four people with life-threatening injuries, Bavarian radio reports.
Police were checking witness statements that the man shouted "Allahu Akbar" during the attack, Bayerischer Rundfunk reported.
German police confirmed several people had been stabbed at a station near Munich. They said four or five people were wounded, one of them seriously.
German media said the victims were men.
Police spokeswoman Michaela Grob said a man was arrested and authorities are working to identify him.
The incident happened in Grafing, east of Munich, shortly before 5am on Tuesday.
