SPRING VALLEY, Calif. - Deputies are searching Thursday for a gunman who robbed a Rally's Hamburgers in Spring Valley.

The incident was reported at 1:50 a.m. in the 8600 block of Jamacha Road.

Employees told police a man armed with a handgun entered the restaurant by diving through the drive-thru window. Initial reports indicated that the man first went up up to the window to ask for a job. The workers said he left after they told him to come back the next day, but he returned moments laterwith the gun.

During the robbery, four workers followed their training and locked themselves in a freezer.

Police said the suspect took items from the store including cash and left the restaurant through the drive-thru window.

The employees reported the incident and told dispatchers that they were unable to get out of the freezer.

Deputies were able to free the workers and conducted a ground and air search for the suspect. As of 5 a.m., the suspect is still at-large.

The suspect is described as a black male between 23 to 25 years old, thin built, with a full beard and approximately 5 feet 8 inches tall.  He was wearing a beanie, red shirt, dark pants and carrying a black jacket.