Several people were injured and one was reported dead on Sunday in the Swedish capital when part of a rollercoaster train derailed and became trapped, with some people subsequently falling from it.
Swedish police said nine people were taken to hospital, and three of them were seriously injured.
Stockholm regional authorities later said three children were hospitalized among the nine injured, but that the injuries were minor.
The park official also reported one death
Swedish public broadcaster SVT and news agency TT both quoted a spokesman for the Grona Lund amusement park as saying that one person had also died in the crash.
“This is incredibly tragic and shocking,” park spokeswoman Annika Troselius told SVT. “Unfortunately we have been informed that one person has died and several have been injured.”
Neither Swedish police nor its government immediately confirmed the death.
The first video footage from the scene shortly after the crash appeared to show most of the train cars still on the roller coaster tracks and even an adult man sitting on a metal pillar that was part of the structure. on the trip a few meters from the ground, apparently waiting for rescue. .
Witnesses told Swedish media that part of the train derailed. Some passengers were stuck in their seats on the trip and had to wait to be removed.

The steel-tracked Jetline roller coaster reaches speeds of up to 90 kilometers per hour (56 mph) and is 30 meters (almost 100 feet) high, according to information on the Grona Lund website. More than 1 million people ride it every year.
msh/dj (dpa, Reuters)