UPDATE: Police release surveillance image of Juhas & Sullivan robbery suspects

GRAND RAPIDS TOWNSHIP, MI -- An employee of Juhas & Sullivan Jewelry fired one shot after three armed men dressed in black tried to rob the store.

The men fled the store and there are no reports of injuries.

Kent County sheriff's Lt. Marc Burns said the men entered the store, 1100 East Paris Ave. SE, at 11:17 a.m. and approached a case.

Soon after, the employee fired the shot.

The three men did not fire back and fled the store.

Witnesses told police the men may have entered a gray or blue Dodge Intrepid and left the scene, heading south on East Paris Avenue.

A hammer was recovered outside the store and is believed to belong to the suspects, police said.

Burns said the store does sell high-end Rolex watches, the item that other robbers have sought in similar robberies. The most recent was at Medawar Fine Jewelry along Plainfield Avenue in January.

Employees at Juhas & Sullivan told police they believe at least one of the robbers had been in the store earlier this week.

Gwadue Bossuah, owner and a personal trainer at the Fzique fitness studio right next to Juhas & Sullivan, said staff at the jewelry store had been on alert this week after seeing a man peering in the windows twice from outside, possibly "casing" the store.

That person was seen leaving in a Dodge Durango earlier this week -- a Durango that a Juhas & Sullivan employee followed to get a plate number for police, siad Bossuah, who has been in close communication with the jewelry store owner.

The same Durango was on scene around the time of the robbery Friday, Bossuah said, and a man who was in the store -- not one of the robbers -- got into it and left in a hurry. He had a child with him, Bossuah said.

Burns said the employee who fired the shot at the robbers was armed with a handgun. That person fired as a robber tried to get into a case.

Police recovered a hammer at the scene and it's believed the robbers intended to smash cases.

Related: Medawar robbery: Federal prosecution for suspects in smash-and-grab halted by gunfire