A man who died at the Dorchester hotel in London on 1 May has been named by police.
Sultan Aldabbous, 38, from Kuwait was found unresponsive at the hotel and was pronounced dead at the scene after police and ambulance crews were called.
Two men who were arrested in connection with the death have been bailed until June, according to Scotland Yard.
Results from a postmortem were inconclusive and the coroner has ordered further toxicology tests, which could take up to seven weeks.
Aldabbous's death is being treated as unexplained and his next of kin have been informed.