A man has been charged with assault after a 45-year-old was found with serious head injuries.
Police were called to Brimham Court, in Redcar, on Saturday night after reports of a disturbance and found the injured man.
He was taken to hospital with head injuries and Cleveland Police said he was in a critical condition.
A 51-year-old man has been charged with assault and is due to appear before Teesside Magistrates' Court on Monday.