DETECTIVES were last night trying to piece together the last movements of a reveller whose body was found lying in the street in the early hours of the morning.

Daniel Adams, 23, was found slumped on the ground early on Saturday by a passing taxi driver, who first thought he had seen a bundle of rags.

Police sealed off the scene, in St Stephen's Road, in the Acomb area of York, and launched a thorough search of the area.

A post-mortem examination later in the afternoon was unable to establish a cause of death, and further tests will now be carried out.

However, officers later ruled out an assault or road traffic accident and said they were treating the death of Mr Adams, of Cornlands Road, York, as unexplained.

Mr Adams was found at about 5.35am by taxi driver Ken Day, who was taking a young woman home from a party.

Mr Day said they saw what seemed like a bundle of rags in the road. He said: "When I got a bit nearer, I saw a leg stuck out.

"He was crumpled up. We pulled up and tried to wake him. His head was in a grate."

Police have established that Mr Adams had visited a city centre nightclub at about 2.45am and had spoken to friends.

He then set out to walk home and police are anxious to trace his movements between then and about 4.20am.

He may have been walking for part of the way with another person, and it is known that the occupants of a white van spoke to him at about 5am in St Stephen's Road.

To help, call (01904) 669884.