A cease-fire between the Taliban and Afghan armed forces was interrupted again on Sunday. A suicide attack left at least 18 people dead.
Afghan President Ashraf Ghani had called a more than weeklong break in fighting with the Taliban. The group responded, calling for a three-day truce to celebrate Eid-al Fitr, which marks the end of Ramadan, the month of religious fasting.
Ghani ordered an extension in the government cease-fire and asked the Taliban to do the same, but a Taliban spokesperson said the group rejected the extension. The cease-fire officially ends Sunday night.
The Taliban have been fighting to regain control of Afghanistan since a U.S.-led invasion ousted the group from power in 2001. ISIS, however, sees the Taliban as a rival. While the Taliban are described as nationalist and only focused on Afghanistan, ISIS' proposed caliphate would encompass all Muslim countries.