A Tennessee woman opened fire in a Burger King window after she appeared to be angry about the waiting time, police said.
Surveillance photos show the disgruntled customer leaning through the open window of the Memphis fast food restaurant brandishing a black weapon.
In a single image, released on Friday by police, the woman raised the gun with both hands and aimed it at the access window.
Police said the woman went to the restaurant on Tuesday and quarreled with workers because she felt her order took too long to complete.
He then took the gun from the car and fired several shots at the staff, police said.
Employees ran through a back door and were injured.
The police were looking for the disturbed owner. A reward of up to $ 1,000 is offered by Crime Stoppers of Memphis and Shelby County Inc. for information leading to an arrest.