A 17-year-old boy was fatally shot inside a Bronx housing development on Thursday, cops said.

About 5 p.m., cops found Ackeem Davis inside an apartment on Astor Avenue near Barnes Avenue, within the Pelham Parkway Houses in Williamsbridge, with a gunshot wound to his torso.

He was rushed to Jacobi Hospital, where he was pronounced dead.

Davis lives in the building, but cops did not immediately know whether he was shot in his own apartment or whether he knew his shooter. No arrests have been made.