Two of the three people killed in a bar shooting in the New York City borough of Brooklyn were among the four shooters who opened fire inside the building, the city's police commissioner said Monday.

The three men killed were Prospect Lefferts Garden resident Marvin St. Louis, 19, Harlem resident Amadou Diallo, 27, and Flatlands resident Jamel Childs, 35, according to police. Officials did not immediately say if they suspected any of the people who were shot had opened fire at the venue.

The Brooklyn hookah lounge where three people were killed and nine others wounded early Sunday was right at the scene of another shooting less than a year ago.

New York City was shaken by a mass shooting in which 11 people were hit, of whom three have died, at a restaurant-cum-lounge

Around four shooters opened fire at a New York City restaurant early Sunday, resulting in three deaths and eight injuries. According to police, the violence is gang-related.

A fatal Crown Heights shooting prompted New York City mayoral candidates to clash over crime policies as city grapples with recent surge in gun violence incidents.

Investigators believe a shooter or shooters opened fire with multiple weapons at Taste of the City Lounge in the Brooklyn neighbourhood of Crown Heights. Those wounded in the shooting — eight men and three women — are being treated at hospitals for non-life-threatening injuries,