UPDATE 4-Suicide bombing at Shi'ite mosque kills 7 in northern Afghanistan -official
(Adds Islamic State claims responsibility for attack, paragraph 4)
By Mohammad Yunus Yawar
KABUL, Oct 13 (Reuters) - A bombing ripped through a Shi'ite mosque in northern Afghanistan on Friday, killing at least seven worshippers, a government official said.
"A blast has taken place at a Shi'ite mosque," Baghlan province official Mawlawi Hashimi said.
Seven people were killed during prayer and 15 injured in the attack in the city of Pul e Khumri in Baghlan, he said. All of the casualties were Shi'ites, he said.
Islamic State (IS) militant group claimed responsibility for the attack in a post on the Telegram messaging app.
Afghanistan's Taliban-run administration has faced an insurgency by IS militants, who have claimed a series of deadly attacks on civilians, foreigners and Taliban security forces in recent months.
Sunni Islamist militants consider Shi'ites to be heretics. (Reporting by Mohammad Yunus Yawar; Writing by Asif Shahzad; editing by Christina Fincher, Mark Heinrich and Grant McCool)