Two trains have collided in Denmark, injuring at least 17 people, according to local emergency services.Four of the injured are currently in a critical condition, according to emergency services.The incident happened north of Copenhagen, on a train line linking the towns of Hillerod and Kagerup, police said in a statement.Public broadcaster DR showed images of two yellow and grey trains, both with visible damage to the front, facing each other in a wooded area."It is two local trains that have collided head-on," a spokesperson for the Greater Copenhagen fire department told Reuters."There are injuries among the passengers Everyone is out of the trains, so no one is trapped … Large resources have been dispatched to the scene," the spokesperson added.The injured have since been transported away from the scene of the accident in ambulances and helicopters, the fire department said on X.Reuters