Two trains have collided head-on on a level crossing north west of Copenhagen, leaving four people critically hurt and 13 others needing hospital treatment, officials say. The incident occurred on a rail line linking the towns of Hillerød and Kagerup in North Zealand, approximately 40 kilometers from the capital.

Tim Ole Simonsen from the Greater Copenhagen fire department could not explain the cause of the crash but confirmed that all injured parties were transported to hospitals by air and ground ambulances. Local mayor Trine Egetved expressed profound shock over the accident, emphasizing its impact on the community.

Images from the scene show two damaged yellow and grey trains facing each other amidst trees. The Frederiksborg Fire and Rescue reported being alerted at around 6:30 AM local time.

Mayor Egetved revealed that those critically injured were taken to the National Hospital in Copenhagen, noting that the Gribskov line is popular among locals.

While instances of rail accidents in Denmark are infrequent, experts speculate that one train driver may have mistakenly entered the wrong line by ignoring a stop signal. Furthermore, it has been suggested that the railway line lacks an updated automated safety system.

Trine Egetved remarked on public broadcaster DR that measures must be taken to prevent such incidents in the future, as it is shocking for two trains to collide head-on.