CAIRO (Reuters) - Islamic State claimed responsibility for an attack in the northern Afghan city of Mazar-e-Sharif on Thursday, according to a statement on the group's Telegram channel.

       An Afghani health official had said that an explosion targeting a Shi'ite mosque in the city killed at least 11 people.

       (Reporting by Ahmad Elhamy; Writing by Lilian Wagdy; Editing by Jon Boyle)