A murder investigation has been launched after a man was attacked and left for dead in the street.
The victim, 31, was found in a critical condition on Friday night by officers who had been called to Stevenage, Hertfordshire, out of fear for his welfare .
The man was given emergency treatment by paramedics before being rushed to Lister Hospital - but was pronounced dead shortly after arrival.
The murder victim has not yet been positively identified and named by police
A spokesman for Hertfordshire Police said an investigation has been launched by detectives from the Bedfordshire, Hertfordshire and Cambridgeshire Major Crime Team.