A 16-year-old bicyclist was killed after crashing into an open car door, then getting run over by a passing box truck in Brooklyn Wednesday night, police said.

Yisroel Schwartz was pedaling north on 17th Avenue near 53rd Street in Borough Park at about 5:40 p.m. when he collided with a car door just as it was being opened, police said.

The crash caused Schwartz to tumble to the street, where he was struck by the white cargo truck, cops said.

The teen was taken to Maimonides Hospital and pronounced dead.

The van operator remained on scene, police said.

No arrests have been made, and the investigation is ongoing.