A head-on collision between two passenger trains north of Copenhagen, Denmark, has left at least 17 people injured, including four in critical condition. The severe crash occurred around 6:30 a.m. local time on the Gribskov railway line, which connects the towns of Hillerod and Kagerup. Emergency response teams rapidly deployed to the crash site to conduct immediate rescue operations. All passengers have been successfully evacuated from the wreckage, with the injured transported to regional hospitals via ambulance and helicopter.