Denver ? The Colorado Rockies shut down all the escalators at Coors Field Thursday, one of the busiest days of the season, while engineers tried to find what caused one of the moving staircases to hurl dozens of terrified fans on top of each other.

Rockies spokesman Jay Alves said 23 people were treated and released from area hospitals. Nine remained hospitalized, none were critically injured but their conditions were not released.

The team went forward with Thursday’s game against Arizona and another fireworks show, typically a big draw.

On Wednesday, there was a near-capacity crowd of 47,032, the largest since opening day.

“We felt like we were going to die and it was primarily from being crushed,” said Greg Strayer, who was on the three-story-tall escalator when it suddenly sped up after Wednesday night’s game and fireworks show.

Strayer’s wife and 16-year-old daughter were left with broken ankles and deep cuts; both underwent surgeries and could face more.

“I just thank God we’re alive,” said Strayer, who was bruised from his fall. “I don’t think the anger has set in yet.”

The Rockies also disclosed that 12 people were injured when another escalator at the stadium abruptly stopped May 24. Alves said people had minor injuries, including cuts and bruises.