Ruben Rivera, 20, was last seen on Dec. 22 at a North Highlands home.
The Sacramento County Sheriff's Department is looking for a 20-year-old man who has been missing for nearly three weeks.
Ruben Rivera was last seen on Dec. 22 at a home on the 6400 block of Stoneman Drive. He lives in the North Sacramento area, but never returned home.
Sgt. Lisa Bowman said Rivera was originally reported as a "voluntary missing adult," but is now considered at-risk because of the unknown circumstances surrounding his disappearance, and it is outside his normal pattern of behavior.
UPDATE: Deputies find body of missing North Sacramento man
Rivera is described as a Hispanic man, 5'6" tall, weighing about 150 pounds, with short brown hair and brown eyes. He was last seen driving a white 1992 Toyota Tacoma truck with California license plate 4N06613.
Anyone with information about Rivera's whereabouts is urged to call the Sacramento County Sheriff's Department at (916) 874-5115.