The man was discovered early Thursday morning off the A66 highway in Middlesbrough, U.K., with "wounds to his groin area." He was taken to the hospital, where he remains in an induced coma.
Police still aren't sure how the man's penis came to be severed. A 22-year-old was arrested on suspicion of assault, but later released on bail.
The status of the penis is also unclear. The highway was reopened later on Thursday, but authorities haven't announced whether their search was successful.