Disturbing new video obtained by The Post shows the moment a gunman fatally shot a 14-year-old boy in the Bronx — leaving smoke pouring out of the pistol’s muzzle.

The footage captures the shooter, who’s wearing a blue bag over his shoulder, first hiding behind a car outside 2249 Morris Ave. before jumping up and shooting at Prince Shabazz, 14, and his 15-year-old brother in Fordham Heights around 9:15 p.m. Wednesday.

The teens turn back and try to flee down the block, but the shooter pursues them and continues to fire his gun wildly.

Prince, who is wearing a white shirt, suddenly falls out of the picture, with his brother continuing ahead. Smoke can be seen coming out of the pistol’s muzzle.

Shabazz was killed in the shooting, which police sources have said was a targeted hit possibly tied to a drill rap dispute. His brother was not injured.

Surveillance video obtained from a nearby store shows the shooters run past the camera, wearing hoodies and masks, right after the murder.

Christopher Sadowski

Christopher Sadowski

“My son was smart, charismatic, loved, and all he cared about is looking good,” the teen’s heartbroken mother said.

“He cared about looks, he cared about girls, he cared about clothes and looking good,” she added. “Anybody who met him, he’ll just charm you.”