Police said Monday they are investigating the cause of an incident in which a 6-year-old boy fell from a moving rollercoaster in Tsumagoi, Gunma Prefecture.
According to police, the boy, Nao Kunifuda, was airlifted to hospital following the incident, which took place at about 11 a.m. at Karuizawa Toy Kingdom. The boy was on the Dragon Coaster ride when his seatbelt became loose, causing him to fall 1.5 meters to a concrete surface, TBS reported. He sustained a broken right arm and several minor injuries, police said.
Park operators say the ride has a height restriction of 100 cm. Police said that Kunifuda is 117 cm tall.
In a statement to the press, the park's acting manager said that the staff on duty are believed to have checked Kunifuda's seatbelt before the ride began, but that a full investigation into the cause of the incident will be launched© Japan Today