Pakistan-Afghanistan relations remain volatile despite a pause in border fighting brokered in March by Saudi Arabia, Qatar, Turkey, and China, with both sides continuing to strike each other in the weeks since. Islamabad summoned a senior Afghan diplomat this week following attacks claimed by the Tehrik-i-Taliban Pakistan (TTP), a militant group that Pakistan accuses the Taliban-led Kabul government of harbouring — a charge Afghanistan denies. Tensions have been building since a major border skirmish in February, and a Pakistani strike on an Afghan drug rehabilitation centre that killed more than 250 people has further inflamed the crisis, raising concerns that the fragile ceasefire could collapse entirely.