A man is still seriously ill in hospital following an alleged assault in Star Road, Peterborough.
The incident happened at about midnight yesterday (Wednesday.)
A man, aged in his 20s, suffered serious head injuries.
Today (Thursday) a Cambridgeshire police spokesman said the man was in a serious but stable condition in hospital.
A 25-year-old man who was arrested on suspicion of causing grievous bodily harm has been bailed by police. He will return to Thorpe Wood Police Station on April 8.
Anyone with information should call Cambridgeshire police on 101, or Crimestoppers, anonymously, on 0800 555 111.