A Carvel ice cream shop in Westbury was robbed Sunday night, and police are investigating whether it’s connected to a pattern of holdups committed by a machete-wielding robber.

No injuries were reported in the 8:02 p.m. robbery of a Carvel store at 801 Carman Ave. in Westbury, a Nassau County police spokeswoman said.

This robber held up a large knife, but police said there was “no confirmation that this robbery is part of a pattern at this time.”

A man who answered the phone at the Carvel at about 8:45 p.m. said, “We’re closed right now.”

When asked whether the store was robbed, he replied, “Yes.” He hung up when he was asked more questions.

Nassau police last week began stepping up patrols around stores at night after a masked, machete-wielding robber struck an ice cream shop in Bethpage, the third heist in what police said was a pattern.

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In the Bethpage holdup, the robber, who displayed a machete, entered the store at about 9:55 p.m. and went behind the counter, demanded money from a 19-year-old worker and fled with an undisclosed amount of cash, police said. The robber was described as between 5 feet, 7 inches, and 5 feet, 10 inches tall, and wearing a black hooded jacket, mask and gloves, police said.

On Feb. 15, a robber holding a machete entered a Dunkin’ Donuts shop on Merrick Road in Seaford at 9:12 p.m. and fled after a worker told him there was no money, police said. The robber was described as 5 feet, 7 inches tall and wearing dark clothing, police said.

Cops believe the same man went to the Carvel store on Northwest Drive in South Farmingdale about a half-hour later and showed the machete and demanded money, leaving with about $40, police said.