Holocaust-denying historian David Irving has sparked widespread fury by organising 'disgusting' tours of concentration camps costing £2,000 for each participant.

The disgraced academic, who is a self-confessed fascist, is leading a tour group to sites in Poland such as Treblinka, Sobibor and Hitler's 'Wolf's Lair' headquarters.

Holocaust memorial groups have accused Irving of insulting the memory of those killed in the Second World War by spreading 'pro-Nazi propaganda' on the tours.

And a leading historian claims that the holidays are marketed towards other Holocaust deniers - adding that it 'surely cannot be right' for Irving to be allowed to market them.

Irving, 77, is notorious for his attempts to play down the extent of the Holocaust, and his insistence that Hitler was unaware of the plan to exterminate the Jews.