
Gunfire erupted just after 3.30am at Taste of the City, a lounge on Franklin Avenue in Crown Heights, commissioner Jessica Tisch said at a briefing.
Officers arrived within minutes and found multiple victims inside.
Three men were pronounced dead – one at the scene and two at Kings County Hospital.
The eight surviving victims, ranging in age from their 20s to 60s, were taken to area hospitals with gunshot wounds to the chest, head and limbs.
Several were in critical condition.
Detectives recovered at least 36 shell casings, pointing to multiple shooters.
A firearm was also recovered nearby, though it was not immediately clear if it was linked to the attack.
No arrests have been made.
“There is no perpetrator description at this time,” Tisch said.
“Eleven people were shot, three are deceased. It’s a terrible shooting. Thankfully, something like this is an anomaly in our city.”