PRINCE GEORGE'S COUNTY, Md. (DC News Now) -- An 18-year-old man is in critical condition after a vehicle hit him while he was riding a bike in Greenbelt on Sunday night, according to the Greenbelt Police Department. The department said the man was traveling on Crescent Road when the vehicle struck him. The driver remained on the scene. 2 men stabbed minutes apart in Rockville, police say In an X post at nearly 9:30 p.m., police said Crescent Road at Lastner Lane is closed as officers investigate. Drivers should seek alternative routes.