One person has been killed and at least nine others have been hurt in a rollercoaster accident at a Swedish theme park. .
According to witnesses, the ride at the Gröna Lund park in Stockholm may have partially derailed. The Jetline roller coaster has a 30 m height ceiling and travels at 90 km/h.
After the incident, the park was closed while police and other emergency personnel were called to the scene.
Jan Eriksson, the park's chief executive, declared a "day of mourning.".
Three of the nine injured people are reportedly suffering from severe injuries and are being treated at a nearby hospital. .
The mishap happened shortly after 11:30 Swedish local time (9:30 GMT).
When the front portion of the rollercoaster detached from the vehicle and came to a stop in the middle of the track, it dropped the 14 riders to the ground.
Journalist Jenny Lagerstedt, who was in the park with her family, told Swedish broadcaster SVT that she was close by when she heard a metallic noise and noticed the track trembling.
She added that her kids were terrified and said, "My husband saw a rollercoaster car with people in it falling to the ground.".
Something similar should not have occurred at Gröna Lund, but it did, according to Mr. Eriksson.
The 140-year-old park would be shut down for a week so that police could conduct an investigation, he added. The money spent on tickets for that time period will be returned to those who already purchased them.
