An assailant has stabbed people at the central railway station in the German city of Hamburg, injuring 12 people - six of them critically, authorities say.
The person attacked people with a knife on the platform between tracks 13 and 14 in the station, according to police.
They said on social network X that a suspect was arrested but did not give details.
Bild newspaper reported that the suspect was a woman.
Emergency services said six people sustained life-threatening injuries while another three were seriously injured and three had slight injuries.
The station in downtown Hamburg, Germany's second-biggest city, is a major hub for local, regional and long-distance trains.
with DPA
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