text: The man, 31, approached Police Community Support Officers guarding a cordon in Albert Road in Plymouth on Thursday evening.
  Devon and Cornwall Police said it was believed he was assaulted in nearby Exmouth Road.
  Two men have been arrested in connection with the stabbing.
  More on this and the latest on what's happening in Devon here
  A force spokesman said the injured man was in a "critical condition" in Derriford Hospital.
  Two men, aged 58 and 46, were arrested on suspicion of assault causing grievous bodily harm with intent. They are awaiting questioning.
target: A stabbing victim walked a third of a mile (480m) to the scene of a fire to find help, police have said.