HOUSTON -- A taxicab driver was shot in the head and dumped at a west Houston parking lot Tuesday, KPRC Local 2 reported.

Investigators said the Yellow Cab driver picked up a fare in southeast Houston and drove to an ATM machine before he was shot and dumped at the Chase Bank parking lot, 10411 Westheimer Road, shortly before 1 p.m.

"When I saw him, he wasn't moving. I thought he was dead," witness David Holbrook said. "I haven't heard (of) this kind of crime in this neighborhood -- not in the middle of the day. It's pretty frightening."

The taxi was found a short time later at the Westchase Forest Townhomes complex located at 9850 Pagewood.

The Yellow cab company was able to help locate the missing taxi through its GPS system.

The cabdriver underwent surgery at Ben Taub Hospital. He was listed in critical condition.

The shooter remains on the loose.

Yellow Cab officials released the following statement:

"The company is in complete shock about what has happened. Our thoughts and prayers are with the driver and we hope he has a successful recovery."

Police hope the bank's surveillance cameras will provide more clues about the shooter.

Anyone with information is asked to call Crime Stoppers at 713-222-TIPS.