POLICE closed Conduit Lane in Grantham yesterday (Sunday) to allow investigations to take place after a man was assaulted.
A 20-year-old man was taken to hospital with with head injuries following the incident at about 3am on Sunday.
His condition is not thought to be life-threatening, but he has been kept in hospital for observation.
A 16-year-old youth was arrested on suspicion of assault.
He was interviewed at Grantham Police Station and released on police bail pending further inquiries.
Witnesses to the incident should contact Lincolnshire Police on 0300 111 0300 quoting incident 68 of May 15.