London attacker explains his action on video

The young black man, who is wearing jeans, sports shoes, a jacket and a black hat and holding a bloody kitchen knife and a meat cleaver is filmed approaching the camera.

"We swear by almighty Allah we will never stop fighting you unless you leave us alone," he says.

"We must fight them as they fight us. An eye for an eye, a tooth for a tooth.

"I apologise that women have had to witness this today, but in our land our women have to see the same. You people will never be safe. Remove your government, they don't care about you.

"You think David Cameron is going to get caught in the street when we start busting our guns? You think politicians are going to die? No it's going to be the average guy, like you, and your children.

"So get rid of them. Tell them to bring our troops back so can all live in peace."