A suspect armed with a handgun and hammer broke into a Mineola supermarket through a skylight Sunday morning and robbed two employees, Nassau police said.

According to police, the unknown suspect entered the Western Beef Supermarket, at 61 Second St., through a roof skylight at about 5:05 a.m.

The suspect then unsuccessfully attempted to break into the store’s office when two employees, men ages 50 and 35, arrived at the supermarket to start their shifts.

Armed with a silver handgun and a hammer, and wearing a ski mask, the suspect robbed the workers of cash and a cellphone and fled through an emergency exit at the back of the store, police said.

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No injuries were reported, according to police.

Anyone with information about the crime is asked to call Nassau County Crime Stoppers at 800-244-TIPS. All callers will remain anonymous.