Suffolk County police are investigating the shooting of three people at a nightclub in North Patchogue early Sunday morning.

The shooting happened about 2:45 a.m. outside the V.I.P. Lounge at 620 Waverly Ave., according to a police report, but authorities were still trying to piece together the circumstances and other details.

Names of the victims were not released.

Police said a 23-year-old Medford man suffered multiple gunshot wounds and was taken to Stony Brook University Hospital for treatment. A a 30-year-old Central Islip man was shot once in the leg and was taken in a private vehicle to Brookhaven Memorial Hospital Medical Center in Patchogue, where he was treated and released.

A 19-year-old Medford man also was treated for a gunshot wound to the leg and was taken to the hospital in a separate private vehicle. He was treated but not expected to be admitted, police said.

A spokeswoman for the Suffolk County Police Department said Sunday’s shooting was the third outside the club since May.

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Two weeks ago, another man was shot and injured outside the nightclub. Jesse Durham, 26, of Mastic, was shot in the leg about 4 a.m. Oct. 15 as he was standing outside the club, police said at the time.

Anyone with information can call Crime Stoppers at 800-220-8477.