The pedestrian struck and killed in the Lanham area of Prince George’s County Saturday evening was not in a crosswalk or intersection when he was hit, and alcohol might have played a role in his being in the roadway, authorities said.

Police have not yet publicly identified the 50-year-old man struck and killed by a vehicle traveling west in the 9400 block of Annapolis Road about 9 p.m. Saturday, saying family members had yet to be told of his death. But they said that alcohol — “on the part of the pedestrian” — appears to have played a role in causing the crash.

The 50-year-old man, they said, was not in a crosswalk or intersection when he was struck.

Police said the 20-year-old driver of the vehicle involved in the crash showed no signs of impairment and remained on the scene afterward.