A 20-year-old man threw airsoft grenades on a train, injuring passengers, but was stopped before causing further harm.

The incident occurred on April 2, shortly after the train left Cologne, when the attacker was subdued by a passenger and a train attendant, preventing a potential massacre.

Authorities found a knife on the suspect, who had previously been monitored for criminal behavior, raising concerns about the effectiveness of early detection programs like ‘PeRiskoP’ aimed at identifying potential threats.