Four people have been arrested on suspicion of murder after a man died in a house fire.
Patryk Mortimer, 39, was killed in a blaze at the former care home on High Street in Easington Lane, Houghton le Spring.
Detectives are investigating the fire, which started at the Manor House premises on High Street in the early hours of November 3.
A 21-year-old man and a 36-year-old woman were arrested on suspicion of murder on Thursday 15 November.
They remain in custody and continue to assist officers.
On Friday 16 November, a 34-year-old man and a 36-year-old woman were also arrested on suspicion of murder and brought in for questioning.
Detective Chief Inspector John Bent, of Northumbria Police, said:
Two men who were arrested on November 4 in connection with the fire remain under investigation pending further enquiries.