Initial investigations suggest the rear of the rollercoaster at Tivoli Friheden in Aarhus broke loose and came off the rails.
ADVERTISEMENTA 14-year-old girl has died after a "tragic accident" on a roller coaster at a popular theme park in northern Denmark.
The incident occurred on the ride at Tivoli Friheden in Aarhus on Thursday, Danish police said in a statement.
According to initial investigations, the rear part of the Cobra rollercoaster broke loose and came off the rails. A 13-year-old boy also suffered injuries to one hand, police said.
Authorities were called to the amusement park at 12:50 CEST after reports that several people were stuck on a ride.
The park was evacuated and closed amid an investigation into the accident.
On Friday, the manager of the park told Danish media that the ride would be permanently closed down and scrapped.
"We no longer have confidence that the attraction is safe enough to continue to be part of Tivoli Friheden," Henrik Ragborg Olesen said in a statement.
According to the official website, the 400-metre Cobra roller-coaster is 25 metres tall and reaches a top speed of 70 kilometres per hour.
In 2008 -- shortly after the park opened -- four people were seriously injured when the front part of the same roller coaster came off the rails. An investigation later revealed a construction error was to blame.