CROWN HEIGHTS, Brooklyn (WABC) -- New York City police believe a deadly mass shooting at a Brooklyn lounge over the weekend stemmed from an argument between two men. It happened at the Taste of the City Lounge on Franklin Avenue in Crown Heights around 3 a.m. Sunday.

The three people killed were all men who lived in New York City, and NYPD officials said two of them fired shots during the incident.

Jamel Andre Childs, 35, tried to cool tempers down at Taste of the City lounge in Crown Heights before the gunfight erupted, friends say.

Police are searching for up to four gunmen after a Brooklyn nightclub shooting left 3 dead and 10 injured in what investigators believe was gang-related.

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

Two of the dead are preliminarily believed to be among those who opened fire inside the crowded Taste of the City Lounge in Crown Heights.

An off-duty New York City police officer fatally shot a man in Washington Heights on Sunday night, police said.

A man was shot by an off-duty New York City police officer in Washington Heights on Sunday night, police announced during a press conference.