A gunman who complained about not getting his taco sauce early Monday opened fire at a fast food restaurant in southwest Oklahoma City, police reported.

No one was injured at the Taco Bell, 2116 SW 59, where the drive-thru window was hit by gunfire.

The employees told police a man in a car went through the drive-thru about 1:25 a.m., and then pulled back around and could be heard from outside the restaurant yelling about not getting his taco sauce with his order.

He then pulled out a gun and opened fire. Employees ran to the back of the store and locked themselves inside a bathroom, police reported.