A man and a woman have been arrested in connection with the death of a man in Borehamwood.
Detectives were called to Theobold Street just after 10.20pm last night by the ambulance service.
The man, whose identity has not yet been revealed, was taken to Barnet Hospital where he died a short time later.
A post mortem will take place at the Lister Hospital this afternoon to establish a cause of death.
The arrested pair, both in their 40s, are being questioned at Hatfield Police Station.
Officers remain at the scene while further investigations take place.