The parents of young people involved in riots across England are not to blame, the mother of a 13-year-old boy who went before the courts has said.

The teenager admitted possessing an offensive weapon after he was stopped in Manchester on Wednesday with a hammer strapped to his leg.

"We need to take some responsibility but not all of it," his mother said.

"You can't say what your child's doing 24 hours a day no matter what a good parent you are."