Police are investigating an armed robbery just after 10:30 last night at Not Your Average Joe's restaurant, 291 Turnpike Road (Route 9).

The assistant manager told police that he was in the building with two dishwashers who were cleaning up after the business closed for the day. The robbery suspect entered the building through an open rear door. The suspect was described as a Hispanic male wearing a ski mask, black hooded sweatshirt, black pants and white sneakers. He was described as being between 5 feet 7 inches and 5 feet 10 inches tall, and appeared to be in his 20's or 30's.

He was armed with a steak knife, which was later recovered by detectives.

The suspect ordered the manager to open the safe where the day's receipts were kept. The amount of money taken has not been determined. The suspect allegedly also stole a Microsoft Zune MP3 player from the assistant manager.

The Westboro Police Department was assisted by the Northboro Police, and Shrewsbury Police Officer Chad Chysna and his police dog. Detective Gary Hassett is investigating the incident.

The suspect was last seen running into the adjacent parking lot of Fountainhead Apartments on Route 9.