San Francisco -- Investigators say someone stole a San Francisco Fire Department SUV while a rescue captain was responding to a medical call late Sunday night. The supervisor had left the keys in the ignition, which is department policy, since they need to leave the lights on.

The suspect drove off and rammed into a moving car. That driver suffered minor injuries.

The car thief then smashed into five other cars. He abandoned the stolen vehicle on Filmore and Golden Gate shortly after midnight.

He took off with a bag of medical equipment. The suspect was still on the loose Monday morning.