Man named locally as Richard Warden, from the Wisbech area, died in a King's Lynn nighclub in the early hours of today.
Emergency services were called to the Chicago Rock cafe, in Norfolk Street, just after midnight.
This morning police said while the death was 'unexplained', it was not being treated as suspicious at this stage.
The man has been named locally as Richard Warden, from the Wisbech area.
A police spokesman said: 'Officers were called to Chicago's at approximately 12.35am following reports a man had collapsed inside the club.
'The 34-year-old man was taken to the Queen Elizabeth Hospital where he sadly died.
'Police are not treating the death as suspicious and the matter has been passed to Her Majesty's Coroner.'
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