One man has been killed and three others wounded by a knife-wielding man near Munich, with police investigating a possible Islamist connection.
The man attacked four commuters shortly before 05:00 AM on Tuesday at Grafing station. One of the victims died of his wounds in hospital. A 27-year-old German man was eventually overpowered by police and arrested.
Some witnesses said he shouted "Allahu akbar" ("God is great" in Arabic).
The suspect has been identified as a 27-year-old German national, apparently from the Hessen area of central Germany.