Videos later posted on the internet showed the politician in action at one club as he and the police were subject to a barrage of boos, heckles and chants from party-goers angry that the plug had been pulled on the music.

Last year around 281,000 Britons travelled to Bulgaria with many heading for the cut-price delights of the Black Sea coast. With a half-litre glass of beer costing less than £1 and an evening meal for two with wine for as little as £20, Bulgaria, and in particular Sunny Beach, has become a haven for youngsters looking to live it up on little money.