Murder inquiry after Peterlee house death
A murder investigation is under way after a man was found with stab wounds at a house in County Durham.
Emergency services were called to a semi-detached house in Sledmere Close, Peterlee, shortly before 03:00 BST.
A 20-year-old man was found in the living room with multiple stab wounds and was pronounced dead at the scene.
Two women, aged 24 and 20, were arrested at the house. A man, 19, was arrested later in Newcastle. They are being held on suspicion of murder.
The man was arrested at an address in Holywell Avenue, Walker, shortly before 09:00 BST. All three were due to be interviewed later.
A man and woman were also arrested at the address in Walker on suspicion of assisting an offender.
Most of Sledmere Close was cordoned off for forensic examination of the scene and house-to-house inquiries.
Durham Police said the murder weapon, thought to have been a knife, has not been traced.
A team of 30 detectives and specialist staff is involved with the investigation and an incident room has been set up.
Police said relatives of the man, thought to be from the Walker area, were being contacted.
A post-mortem examination is due to be carried out later.
Det Chief Insp Steve Chapman said it was believed all those involved knew each other.
He said: "We would be keen to hear from anyone who heard a disturbance or noticed anything unusual in the Sledmere Close area of Peterlee in the early hours of Sunday.
"Crimes involving bladed weapons are relatively rare in our force area, but sadly on this occasion it would appear a young man has lost his life in such a way."