PALM BAY, Fla. -

Palm Bay police released surveillance pictures from a Subway restaurant that was held up by a gunman on Tuesday.

Detectives tell Local 6 the suspect walked into the Subway at 3450 Bayside Lakes Blvd. at around 4 p.m. on Tuesday. The man threatened a Subway worker with a handgun and demanded cash from the register.

The worker handed over an unknown amount of money to the robber. The suspect ran away without hurting anyone inside the restaurant.

[PHOTOS: Surveillance cameras capture suspect]

Officers set up a perimeter in the area and sent out a K-9 but they were unable to find the robber.

The suspect is described as a black man in his 30s who is about five feet five inches tall. He was wearing an orange shirt and brown hat and was seen carrying a gray Walmart plastic bag.

Anyone with information on the robber or anyone who recognizes the man in the surveillance images is asked to call CRIMELINE at (800) 423-TIPS.