KABUL (Reuters) -Bombs exploded aboard two passenger vans carrying Shi’ite Muslims in the northern Afghanistan city of Mazar-e-Sharif on Thursday, killing at least nine people, an official said. The blasts follow an explosion at a Shi’ite mosque in the city last week, which killed 11, as Afghanistan grapples with a rise in attacks by Islamic State following the withdrawal of foreign forces last year. {nL2N2WJ0K1] The group has claimed responsibility for Thursday’s attack in a post on its Telegram account. “The bombs were placed inside the vans; due to those blasts nine have been killed and 13 …