A MYSTERY blaze in Dover has wrecked a derelict building once used as an officers' club for the Prison Service.

More the 50 firefighters tackled the blaze in Citadel Road. The first 999 call was made just before 11pm on Saturday and the last crew left the scene at 5am on Sunday.

A spokesman for Dover Fire Station said: "The building has completely destroyed. We are treating the cause as suspicious."