By Mohammad Yunus Yawar KABUL (Reuters) -A bomb blast in a busy shopping street in Afghanistan’s capital Kabul on Saturday killed at least eight people and injured 22, hospital officials and witnesses said. The bomb exploded in a western district of the city where members of the minority Shi’ite Muslim community regularly meet. Islamic State, a Sunni Muslim militant group, claimed responsibility for the attack, the group said on its Telegram channel. A senior medical officer at a private hospital said at least eight people died and 22 were wounded. An Interior Ministry spokesman said an invest…