A mass shooting overnight at a club in Brooklyn left three people dead and another nine wounded, police officials and the mayor said Sunday morning.

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.

The police commissioner identified the second gunman killed in the shooting early Sunday as Marvin St. Louis, 19, a Brooklyn resident with no known criminal record. Police said a third man shot dead, Amadou Diallo, 27, of Manhattan, was an innocent bystander inside the club.

A mass shooting overnight at a club in Brooklyn left three people dead and another nine wounded, police officials and the mayor said Sunday morning.

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