Two young men under the age of 21 were killed and two women, one of whom was seriously injured, while playing in a roller coaster in an amusement park in Mexico over the weekend, according to dpa.
Prosecutors in Mexico City opened an investigation into the incident. About 20 people were riding the roller coaster at the time, and it was not clear how the vehicle broke off the rails.
The Games City in Miguel Hidalgo, Mexico City, has remained closed since the incident on Saturday afternoon, and park operators expressed grief and grief over the incident via tweets.