A 21-year-old Frederick man died early Friday after he was hit by a car in Frederick County, police said.

Officers responded to Liberty Road in the area of Unionville Road at about 4:41 a.m. According to police, a passerby found Kevin Williams lying on the side of the road and stopped to check on him; Williams then jumped to his feet and was struck by a car.

No charges have been filed in the incident, police said.