A mass shooting at a Brooklyn, N.Y., nightclub left three people dead and nine others hospitalized, New York City Mayor Eric Adams said Sunday.

Within minutes, officers arrived at 903 Franklin Avenue, finding that nine men and three women, ranging in age from 19 to 61, had been shot. Three men died. One man, 19, was pronounced dead at the scene. Two other men, 27 and 35, were critically wounded and succumbed to their injuries at the hospital.

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.