David Cameron has suggested the perception of Muslims as "victims" must be challenged as part of efforts to stamp out extremism.

The Prime Minister said it was "not good enough" for people to say they oppose terrorism while endorsing ideas such as the September 11 attacks being a "Jewish plot".

The comments came as Mr Cameron gave evidence to the Commons Liaison Committee on how to prevent radicalisation.

The premier stressed that the problem only affected "a minority of a minority of a minority", and said a great deal of work had already been done.

"We need everyone to rise up and say these people are not speaking in my name," he said.

"I know that sometimes people can feel like they are being targeted when I ask them to do that. That is not my intention. We have got to drive these people out of our communities, we have got to drive them out of national life.

"And that means confronting - and this is the difficult bit, I think, because sometimes people say, of course we are against the extremist terrorists - but we also need to oppose the world view that says all Muslims are victims, 9/11 was a Jewish plot ... sometimes people accept that as a narrative, but say, 'well, violence is wrong'.

"That's not good enough. I'm afraid we do need to deal with that part of the narrative as well."

The PM said he was "confident" he could reach agreement with foreign governments about measures to temporarily exclude British jihadis from returning home.

Home Affairs select committee chairman Keith Vaz asked: "Are you satisfied foreign governments will say, 'okay, we will keep them and we will not send them back to Britain'?"

Mr Cameron told him: "We are discussing this with foreign governments, I discussed it myself with the Turks when I was there recently. I'm confident we will get the agreement we need.

"It goes to the bigger point, which is what are we trying to do here? We need to give our police and security services the suite of powers necessary to keep us safe.

"Sometimes that's taking passports away from people and their families in advance of them travelling, sometimes it's at the border - the new power we are introducing. On occasion it will be right to say to someone who is thinking of returning to Britain but who we are very worried about, 'well, you can't come back until we are satisfied that we have in place the measures that we need to keep you safe'.

"Now, obviously, that puts pressure on foreign governments but foreign governments often put pressure on us by not taking back their citizens when we want them to. There are quite a lot of them in our prisons."

He added: "Our prisons are full of people I would happily put on plane tomorrow and send back to these countries but, for all sorts of reasons, they don't want to take them. So I believe in playing pretty tough on this one, I think it's very important that we are very robust about keeping our country safe."