World Media

21 children injured at San Diego gym after platform collapses

Officials respond to the scene where a stairway collapses injuring around 20 children on Nov. 11 2017

A stairway collapse at a crowded San Diego parkour facility injured 21 children and two adults on Saturday evening.

"Once the majority of kids got up there the whole platform collapsed", he said. Authorities said the injuries ranged from mild to moderate, also including a spine and a head injury. All are expected to survive.

It was reported at 7:40 Main and Sigsbee streets, according to the San Diego Fire Department.

At least 21 children were hospitalized, and at least four treated for major, including spinal, injuries, San Diego Fire Department's Deputy Chief Steve Wright told reporters Saturday night.

A parent who did not provide his name said the stairwell collapsed after so many children were running up and down from a loft to get pizza.

Vault PK owner and founder Jessica Ho issued a statement about the accident to ABC News. Many parents were probably using a Groupon that had been offered for the event, he said.

Besides paintball, the warehouse includes trampolines and bouncy houses. His son, who was there for a birthday party, suffered minor scrapes after being on the platform when it fell. Following the incident, one of their children called them up, and that is when they rushed back to the facility. The training facility specializes in parkour training which is based on military obstacle courses.

"It was a freak accident", Smith said.

After the incident children were seen huddled in groups - some with their parents and guardians - outside the center, as emergency service vehicles lined the area.