The attack took place around 3 p.m., a Flensburg police spokesman said.
The alleged perpetrator, who is said to be between 20 and 30 years old, was arrested at Brokstedt station, where the regional train was immobilized.
The reason for the attack has not yet been established, according to the police, adding that all leads are being studied, from the act of an extremist to the gesture of an unbalanced person.
Witnesses to the attack described a “panic scene” on the train, writes the Bild media on its website.
A large array of police vehicles and ambulances has been deployed around the station, according to photos published by Bild. The railway company Deutsche Bahn announced that trains would be canceled on the main lines.
“The act committed on the regional train between Kiel and Hamburg deeply upsets me,” reacted Minister Sabine Sütterlin-Waack, denouncing an “appalling act contrary to
