Three firefighters and 12 passengers were injured when a train collided with a fire truck on an emergency call Saturday morning in Delray Beach, Florida, authorities said.

They are on leave “pending the results of an internal administrative investigation to determine if City and Fire Rescue policies and procedures were followed,” the fire chief said.

Around 10:45 a.m., a Brightline train and a Delray Beach Fire Rescue ladder truck collided near East Atlantic Avenue and Railroad Avenue, according to city spokeswoman Gina Carter. Debris from the crash scattered across the tracks and nearby roadways.

The crossing gates were lowered and the fire truck was straddling the tracks when the high-speed train approached, a video of the collision shows.

Four firefighters from Delray Beach Fire Rescue were placed on administrative leave following a crash with a Brightline train.=