At least 30 people have been killed in a bomb attack carried out at a Shia mosque in the Afghan capital, Kabul.
The explosion rocked Imam Zaman mosque in the western district of Dasht-e-Barchi on Friday as worshippers had gathered for prayers.
A top security official said the exact number of casualties was still unknown.
No group has immediately claimed responsibility for the attack. Both the Taliban militants and the Daesh Takfiri terrorists have targeted Shia mosques in the war-torn country in the past.
Concerns are growing over what appears to be an alarming spread of Shia killings in Afghanistan.
Late last month, a bomber detonated an explosive device outside another Shia mosque in Kabul, killing at least six people. Daesh claimed the attack, which came just ahead of Ashura mourning rituals.
In August, more than 40 Shia Muslims were killed in Kabul when Daesh terrorists attacked a mosque packed with worshipers.
Criticism has grown over Kabul’s failure to take proper measures to better protect its Shia Muslim population against terrorist attacks.