The train crash north of Copenhagen happened early on Thursday morning on the Gribskov Line (Gribskovbanen) near Kagerup, between Hillerød and Kagerup, and left at least 17 people injured, including four in critical condition, according to Danish authorities and local media. The collision took place at around 6:30 a.m. on 23 April, and the rescue response was still developing through the morning as police and emergency services worked to clarify the full consequences of the accident.
What happened on the Gribskov Line near Kagerup
Two Lokaltog local trains collided head-on on the line in North Zealand, an area north of Copenhagen used by commuters, students and local residents. Images from the scene showed severe damage to the front sections of both trains, with debris scattered around the track.
Emergency services said all passengers had been evacuated and that nobody was trapped inside the trains. A large response was deployed to the area, including ambulances, firefighters and a rescue helicopter, while roads near the site were closed for several hours.
Injuries, hospital transfers and the emergency response
Danish authorities said 17 patients had been treated in connection with the crash. Across the latest public updates available at the time of writing, four people were reported to be in critical condition, while the remaining injured appeared to have suffered less severe wounds. Several of the injured were flown to Rigshospitalet, Copenhagen’s main trauma hospital.
The exact breakdown of patients has varied slightly across early reports, which is common in the first hours after a major transport accident. What appears established is that the collision caused a significant number of injuries, triggered a large-scale medical response and led to multiple hospital transfers from the scene.
What remains unclear about the cause of the collision
The cause of the head-on train collision was still unknown on Thursday morning. Danish police and the Accident Investigation Board Denmark (Havarikommissionen) were expected to examine the sequence of events, including signalling, train movements and operational procedures on the single-track local railway.
Some early commentary in Danish media pointed to the possibility of human error, but authorities had not publicly confirmed any cause. At this stage, the most solid fact is that investigators had begun work and that no official explanation had yet been released.
Rail disruption and support for passengers and families
Train traffic on the affected section of the Gribskov Line was suspended after the collision, with replacement buses introduced on parts of the route. Police also said road access near the site would remain restricted for an extended period while the area was secured and examined.
Local authorities in Hillerød opened a crisis centre for passengers, relatives and others affected by the crash. Municipal officials said psychologists had been called in, while police asked relatives to use the designated support channels as the response continued.
Rescue work is ending, while the investigation is just beginning
The collision is one of the most serious rail accidents in Denmark in recent years and has immediately raised questions about safety on regional lines operated outside the main national rail network. The Gribskov Line is an important connection in North Zealand, linking smaller communities to Hillerød and, through it, to greater Copenhagen.
As the emergency phase gives way to investigation, the focus is likely to shift toward how two trains came to meet on the same track and whether operating procedures, signalling or timetable management played any role. For now, the priority remains the condition of the injured and support for families as Danish authorities continue to update the situation.
