Police investigating after a body was found at a recycling plant on Wearside say there was no third party involvement.
The discovered was made at the Impetus plant in Washington on Tuesday (June 24).
A post mortem has been carried out but the results were inconclusive.
Police investigating the suspicious death of a man whose body was found in a recycling plant on an industrial estate in Washington, want to hear from anyone who saw him over the past few days.
The body has not yet been formally identified but police believe it to be John Sumner, 26, from Sunderland.
– Detective Superintendent Roger Ford, of Northumbria Police Major Crime Team,
"An investigation has begun into the circumstances of John Sumner's death, which at this time is being treated as suspicious, and we are appealing for anyone with information to come forward.
"We're keen to build a picture of John's movements over the past few days and would urge anyone who has knows him, or who has any information, to contact us on 101."
Northumbria Police believe a body found in a recycling plant in Washington to be 26-year-old John Sumner, from Lincoln Street in Sunderland. Officers are treating his death as suspicious.
The body has not yet been formally identified. A post mortem examination is currently being carried out establish the cause of death.
Police activity was focusing on a recycling plant in Washington after a body was found. Vans were parked outside Impetus Waste Management at the Pattinson Industrial Estate in Washington.
Officers said a body was found at a "commercial premises" at about 1:30pm on Tuesday, 24th June.
A body has been found in a commercial premises on Wilden Road, Pattinson, Washington. Northumbria Police said they were in the very early stages of investigating the death,