Updated

An Afghan official says the death toll from a suicide bombing against a gathering of Taliban fighters celebrating a holiday cease-fire has risen to 36.

Najibullah Kamawal, director of the health department in the eastern Nangarhar province, says another 65 people were wounded in Saturday's attack.

The bomber targeted a gathering of fighters who were celebrating a three-day truce coinciding with the Eid al-Fitr holiday. No one immediately claimed the attack, but it was likely carried out by the Islamic State group, which was not included in the cease-fire and has clashed with the Taliban in the past.

After the attack, Afghan President Ashraf Ghani announced a nine-day extension of the cease-fire. There was no immediate word from the Taliban on whether they would observe the extension.