(NEW YORK) — Three men, including a 19-year-old, were killed and nine other people were injured early Sunday when a dispute inside a crowded New York City nightclub erupted into a shooting incident that police said appeared to have involved multiple gunmen firing dozens of shots.

No one has been arrested in the deadly incident, NYPD Commissioner Jessica Tisch said at a noon news conference on Sunday, which followed an initial press conference she gave earlier in the morning. Police are examining security footage and interviewing witnesses in an effort to identify the shooters, Tisch also said.

Tisch said the shooting appears to be gang related but declined to elaborate, citing the ongoing investigation. She said that up to four gunmen opened fire inside the nightclub, hitting numerous by

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