Boris Johnson has defended comments he made yesterday, when he branded jihadists "losers" who were "rejected by women".
The Mayor of London, who visited Norbury Manor Primary School today, had comes under fire for saying those turning to extremism were "tortured", had low self-esteem and "typically looked at porn".
At the launch of his "Breathe Better Together" campaign at the school this morning, the Mayor remained resolute on his stance.
He said: "I think there is a big problem of general self-esteem and people's feeling about what the world holds for them, are they winners in life or not, and the crucial thing for young men from all backgrounds is to get them into work."
When asked what more Muslim leaders should be doing to counter the threat of IS, he said: "I think a lot of Muslim leaders are doing fantastically, after the atrocities in Paris there have been some fantastic statements from Muslim leaders in Britain.
"It is very hard, somehow or other a language has got to be found and it needs to be made by intellectuals, leaders in the Muslim community, to knock on the head the whole jihadi ideology.
"Somehow it really needs to be eradicated at an intellectual level."