(AP) -- The group in a statement on its website late Friday says its fighter "Abu Ammar al-Turkmani detonated his explosive vest among the apostates" in the Imam Zaman mosque in western Kabul earlier in the day.

Isis has staged similar attacks on Shiite mosques in recent months.

Isis in Afghanistan has taken responsibility for most of the attacks targeting Shiites, whom the extremist group considers to be apostates. Earlier this year, following an attack claimed by Isis on the Iraqi Embassy in Kabul, the militant group effectively declared war on Afghanistan's Shiites, saying they would be the target of future attacks.