LOUISVILLE, Ky. (WDRB) -- Two armed gunmen stormed a McDonald's on South Hurstbourne at Interstate 64 early Tuesday morning.

Louisville Metro Police are investigating the holdup that happened just before 3 a.m.  Spokesman Dwight Mitchell says the two men went into the restaurant with their faces covered and fired a shot into the ceiling.  A few employees were inside, but there were no customers.

During the robbery, one employee was struck with a gun.  That employee was treated at the scene for minor injures.  The two robbers were able to getaway on foot, but police don't know which direction they ran.  Detectives are still determining what the robbers managed to steal.

"They're very violent," said Sgt. Eric Black of LMPD's Robbery Unit. "It's not too often in an armed robbery someone shoots off a round and strikes people during a hold up. It's senseless. It's needless."

K-9 units have been searching the area for clues.  But Mitchell says this robbery is "absolutely similar" to recent fast food hold ups.

This is the sixth time a fast food restaurant has been robbed at gunpoint since mid-July. Two armed men disguised in masks and bandannas robbed the Dairy Queen in Middletown on July 16.  On July 23, armed men robbed a McDonald's on Preston Highway near Indian Trail, and on July 25, the Hardee's on Taylorsville Road in Jefferson-town was robbed.

Earlier this month similar armed robberies were reported at a Jeffersontown Wendy's and Fern Creek Dairy Queen.

All the robberies have happened early in the morning with men wearing disguises.  Police do not know whether the robberies are connected.

Police are reminding fast food workers to be aware of their surroundings and to lock the door in the early morning hours before the restaurant is open.

If you have information call the crime tip line at 502-574-LMPD.

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