Nigel Farage, leader of the UK Independence Party (UKIP) , says that European leaders have been guilty of 'moral cowardice' in failing to challenge extremists.
Most big French cities have areas which have become "no-go zones" which non-Muslims and even police cannot enter, Nigel Farage has said.
The Ukip leader said that Britain and European countries have suffered from "moral cowardice" and allowed "big ghettos" to develop. He said: "It's happening right across Europe. We have got no-go zones in most of the big French cities. We've been turning a blind eye to preachers of hate that have been coming here from the Middle East and saying things for which the rest of us would be arrested.
"In parts of northern England we've seen the sexual grooming of under-age girls committed by Muslim men, in the majority, and for all of these things we are seeing the law not being applied equally, we're seeing the police forces not doing their job because we've suffered from moral cowardice.
"We have through mass immigration and through not checking the details of those people who have come to our countries, we have allowed big ghettos to develop and when it comes to confronting tough issues and that is why we're in the mess we're in, we've been led very badly."