Afghanistan bomb 'kills 11 civilians'

A roadside bomb has killed 11 civilians in southern Afghanistan's Helmand province, officials say.

The bomb, blamed on Taliban insurgents, hit a coach in Nawzad district, said a spokesman for the provincial governor.

The blast was well to the north of where Nato and Afghan troops are waging a major offensive against the Taliban.

Taliban insurgents have increasingly resorted to using roadside bombs as Nato countries have increased their troop numbers in Afghanistan recently.

"A newly-planted mine of the Taliban hit a coach bus, killing 11 civilians including two women and two children," said the spokesman, Dawud Ahmedi.