At least 12 people were killed after a bomb ripped through a mosque in the Afghan capital Kabul during Friday prayers as worshippers gathered for the second day of the Eid al-Fitr holiday, officials said.
Ferdous Faramarz, spokesman for the Kabul police, said the mosque's Imam, Mofti Naiman, was among the 12 dead, and at least 15 other people were wounded.
There was no immediate claim of responsibility for the attack.
An image circulating on social media showed three bodies lying on the floor of the mosque, which showed minor damage.
Taliban insurgents have called a three-day ceasefire for the holiday, which marks the end of the Ramadan holy fasting month.
The blast came less than a week after an explosion at a school killed over 90 people, most of them schoolgirls from the ethnic Hazara Shiite Muslim minority. The Taliban denied involvement and denounced that attack, and no one has claimed responsibility for it. US officials believe it may have been the work of a rival militant group such as ISIS.
Violence, including attacks on civilians, have increased in Afghanistan, even as the United States has begun an operation to withdraw all its remaining troops over the next four months.
Just this week the last of the US troops left southern Kandahar Air Base, while some NATO troops still remained. At the war's peak more than 30,000 US troops were stationed in Kandahar, the Taliban heartland.