The incident is the latest test of a fragile ceasefire agreed between the two countries last month.
Pakistani media report a drone has hit a mosque in Bannu near the border, injuring at least five people.
The Taliban says its leaders willing to negotiate with Pakistan as both sides claim to inflict heavy losses in fighting.
Pakistan and Afghanistan are disputing death tolls from their cross-border attacks.
Residents of Kabul, Afghanistan are cleaning up broken glass and describing how they tried to run to safety.
Analysts warn escalation may embolden armed groups and destabilise both Afghanistan and Pakistan. What happens next?
Pakistani defence minister says Pakistan and Afghanistan are now at ‘open war’.
Both sides accused the other of unprovoked fire near their fraught frontier.
Pakistani air raids break fragile ceasefire as Islamabad faces pressure on both borders.
Afghan officials accuse Pakistan of targeting civilians, 13 of whom the UN says were killed in Sunday’s air raids.
