Police are treating the death of an oil industry employee as suspicious.

The body of Lewis Welch, 32, was found at a house in Wheatacre Close, Marske, east Cleveland, shortly before 7pm on Saturday, August 14.

Mr Lewis, a single man, had just returned to the UK on the Friday after a period working abroad with the oil industry.

A post mortem was carried out but no cause of death has yet been ascertained.

Police say further tests are being carried out.

They also believe that Mr Welch may have taken drugs.

Two men, who were at the house, have been arrested in connection with the death.

Both have been released on police bail.

Acting Detective Sergeant Mike Harper said: "We are keen to trace anyone who had been in contact with Mr Welch since his return to the UK.

"We are particularly interested in speaking to people who may have been with him during the day on Saturday and to anyone who visited the house at 5 Wheatacre Close."

Anyone with information is asked to call Acting Detective Sergeant Harper at Redcar CID on (01642) 302626..