A post mortem examination carried out on the body of 23-year-old Dominic Elliott at Hull Royal Infirmary mortuary showed no obvious natural causes for his death. Mr Elliott was a studio assistant for world renowned artist David Hockney.
Further tests will now be carried out, the results of which will not be known for some weeks. Mr Elliott's family has been fully updated by Humberside Police.
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Widespread frost and patchy fog overnight
Wintry showers then frosty tonight, dry and cold on Sunday
Frosty and foggy, and settled for the next few days