A woman who was stabbed to death was a 31-year-old social worker, police have said.
Police were called to an address in Woodfield Lane, Lower Ashtead, Surrey on Wednesday, following a report that a woman had been stabbed.
The woman, named by police as Laura Grace Emily Davies Jones, was found with serious injuries and was pronounced dead at the scene at around 2.30pm.
A police spokesman said: “A post-mortem examination carried out today found the cause of death to be a stab wound to the throat.”
A 33-year-old man, who had also received injuries, was arrested on suspicion of murder and was taken to hospital where he was in a stable condition, the spokesman added.