Salt Lake County Sheriff's investigators issued a warning and a call for help Tuesday in finding two men responsible for a violent take-over robbery.

About 10:20 p.m. Friday a man rushed into Molca Salsa, 2901 E. 3300 South and immediately fired a shot into the ceiling without warning, said sheriff's Lt. Paul Jaroscak. The man then ran up to the register and started taking out cash, he said.

A few moments later, a second man carrying either a sawed-off shotgun or rifle entered the restaurant and pointed his weapon directly at customers, demanding their money. There were about eight patrons in the building when the robbery occurred.

After robbing each person, the two men left the restaurant. No one was injured, but a surveillance videotape of the incident released Tuesday showed employees and customers were very shaken.

"This was a very violent takeover robbery. There's a real concern they resorted to violence awfully quick," Jaroscak said.

The men wore bandanas over their faces. They were between 5-foot-8 and 5-foot-10 with stocky builds. The men, either Hispanic or Pacific Islander, wore bulky coats. Investigators believe they are responsible for other robberies around the valley.

Anyone with information can call the sheriff's office at 743-7000.