A man is in a critical condition after he was found on fire in front of a homeless hostel.
The victim, in his 20s, suffered severe injuries in the blaze outside the YMCA on Wellington Street, Peterborough, at about 08:30 GMT.
It is not known how the fire started, but it is not thought anyone else was involved, Cambridgeshire Police said.
The man was airlifted to a burns unit for treatment. Investigations continue, the force added.