The break-ins happened overnight, in the early hours of Thursday, July 18, in Carle Place.
Nassau County Police said a masked man threw a rock through a glass window at Sunny Nail Spa on Voice Road sometime between midnight and 9:30 a.m. Once inside, he stole an undisclosed amount of cash before fleeing on foot.
Another break-in was reported a block away, at Blooming Nails & Spa on Westbury Avenue, at around 1:30 a.m.
As in the first incident, the suspect used a rock to smash his way through the front glass door before stealing cash and fleeing out a back door.
Police described the suspect as a white man, around 5-foot-9 and 160 pounds, with brown hair. He was wearing a blue, long sleeve plaid button down shirt with blue jeans, black sneakers, gloves, and a mask.
Anyone with information is asked to contact Nassau County Crime Stoppers at 1-800-244-TIPS. All callers will remain anonymous.
Click here to follow Daily Voice Franklin Square and receive free news updates.