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.

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.

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.

Within minutes, officers arrived, finding that nine men and three women, ranging in age from 19 to 61, had been shot. Three men died. Marvin St. Louis, 19, was pronounced dead at the scene. Amadou Diallo, 27, and Jamel Childs, 35, were critically wounded and succumbed to their injuries at the hospital.

Wilky Vladimil Toribio Perez was shot in the left shoulder on Pine St. near Etna St. in Cypress Hills around 2:25 a.m. Aug. 10, police said.

Three people are dead, and nine others injured after police say several gunmen opened fire inside a nightclub in Brooklyn early Sunday morning.

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.