A man has died and another is in hospital with serious stab wounds following an attack in Essex.
Emergency services were called to an area of Pennymead in Harlow just before 0300 BST.
A 54-year-old man has been arrested for murder and a forensic examination of the scene was taking place.
A police spokesman said the investigation was "in its very early stages" and there was no more information available.
Police said the injured man was being treated at the Princess Alexandra Hospital in Harlow.