A forensic expert walks next to a train at a railway station after an incident involving a knife attack took place on a train travelling between Kiel and Hamburg, in Brokstedt, Germany, January 25, 2023. REUTERS/Fabian Bimmer
A forensic expert walks next to a train at a railway station after an incident involving a knife attack took place on a train travelling between Kiel and Hamburg, in Brokstedt, Germany, January 25, 2023. REUTERS/Fabian Bimmer