A homeless man was killed on Tuesday when a truck he was lying under pulled out of a parking spot in Brooklyn, sources said.

The individual — who may have been sleeping under the vehicle or shielding himself from the rain — was struck by the box truck near 1177 Flushing Avenue at around 5 p.m., according to police sources.

Emergency Medical Service workers arrived and pronounced the man dead at the scene of the incident.

The NYPD’s Collision Investigation Squad was on the scene Tuesday night.