A leader of the terror group behind the Tunisian beach massacre is living off benefits in Britain, the Mail newspaper revealed.

Jihadi preacher Hani al-Sibai – who described the 7/7 terror attacks in London in 2005 as a ‘great victory’ – is one of the ‘key influencers’ of the Islamic fanatics believed to have recruited and trained gunman Seifeddine Rezgui.

But he is living on £50,000 a year in handouts with his wife and five children in a £1 million house in West London, after using human rights laws to thwart attempts to deport him for more than 15 years.

Days after the atrocity in Tunisia, the Mail found al-Sibai, 54, strolling in the sunshine outside his home.

Asked how he could justify milking the welfare state for so much, al-Sibai – who is under investigation suspected of benefit fraud – said: ‘Ask David Cameron, don’t ask me.’

Last night, there were furious calls to deport al-Sibai, who has also been linked to Islamic State executioner Mohammed Emwazi, known as Jihadi John.

Keith Vaz, chairman of the home affairs select committee, is writing to Home Secretary Theresa May to demand an explanation as to why al-Sibai is still in the country.

‘It is extraordinary that successive governments have been trying but failing to remove someone who has these worrying links,’ he said.

‘The way he has foiled attempts to remove him are a cause for enormous concern.’

The Mail last week revealed the links between the beach massacre in Tunisia and Islamic extremism in Britain.