A possible motive for the shooting remains under investigation, but authorities have said it appears to be gang-related.

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.

Investigators believe up to four shooters were involved, and police fear the violence could spark retaliations. The attack marks the city’s second mass shooting in just weeks. FOX 5 NY's Kendall Green has the latest.