A four year old boy is still in hospital after being found with serious injuries. Officers were called to a street in Mansfield on Monday lunchtime where he was discovered. It is believed he had been stabbed. His relatives are with him at the Queen's Medical Centre in Nottingham. A 51 year old man has been arrested. Anyone with any information is being asked to contact Nottinghamshire Police on 101 or Crimestoppers on 0800 555 111.