A 26-year-old man was fatally shot when he opened the door to his Fort Greene, Brooklyn apartment early Saturday, cops said.

Carnell Victor came to the door of his apartment at 111 Bridge St. in the Farragut Houses around 2:10 a.m. when someone fired at him, hitting him in the neck, police said.

He was rushed to the Brooklyn Hospital Center, where he was pronounced dead.

Cops did not know whether he knew his shooter.

No arrests had been made Saturday morning.