HARRIS COUNTY, Texas - Harris County Sheriff's deputies are looking for four men they say held a bank employee at gunpoint and carjacked a vehicle.

The alleged robbery occurred Thursday at a Chase bank in the 15200 block of Wallisville Road. Officials say four suspects approached an armored vehicle as a Brinks employee was servicing the ATM.

According to deputies, one of the suspects put a gun to the woman's head and demanded she drop the money. The woman complied, and at some point -- officials say -- a shot was fired.

Authorities say the driver of the armored vehicle tried to stop the suspects by backing into their truck. They say the suspects then drove about a block from the scene and carjacked a vehicle.

Deputies are still looking for the suspects at this time.

Harris County Sheriff's deputies are looking for suspects after an armored car robbery in northeast Harris County.