One man was killed and another critically wounded when gunfire erupted at a party in a Crown Heights housing project, cops said.

The shots rang out about 4 a.m. at a gathering inside 120 Kingsborough 1st Walk, part of the Kingsborough Houses.

A 22-year-old man took several bullets to his torso and was declared dead at Interfaith Hospital.

The other victim, a 32-year-old man, was struck once in the torso. He was taken to Kings County Hospital in critical condition.

Cops rounded up several witnesses, who are still being interviewed.

No arrests have been made.