HOUSTON -

A Houston Fire Department truck on its way to an emergency in southwest Houston ended up in its own emergency after it was hit by a pickup truck.

Police say the driver of the pickup ran a red light and collided with a fire engine at the Highway 59 frontage road and Hillcroft. After the crash, police say the driver took off running.

Investigators say four Houston firefighters from Station 51 were heading to an emergency call at around 4:30 a.m. Wednesday. They were headed north on the Southwest Freeway frontage road when police say the driver of a Ford pickup truck ran a red light heading south on Hillcroft. Police say after the crash the man got out of the truck and fled.

"None of the firefighters were hurt. The man that ran from the scene, we don't know his condition but evidently he was good enough to run from the scene," said Stephen Martinez, with the Houston Police Department.

After the on-scene investigation, the fire engine was able to drive away from the scene, but the pickup truck had to be towed away.

Police say the pickup had not been reported stolen. They are now be following up on leads, trying to locate its driver.

Police say there were witnesses to the crash. Police say two other drivers were right in front of that pickup truck driver before the crash and they made it through the intersection, but the truck's driver did not.

Officers confirmed the fire engine had the green light.