Islamabad said on Thursday that it had launched air strikes on insurgents in Iran, two days after Tehran struck "terrorist targets" inside the South Asian country.
Pakistan's caretaker Prime Minister Anwaar-ul-Haq Kakar will chair the National Security Committee meeting, his office said. The country's powerful army chief and heads of intelligence agencies will take part in the meeting.
It aims at a "broad national security review in the aftermath of the Iran-Pakistan incidents," Pakistani Information Minister Murtaza Solangi told Reuters.
Fears of escalation and wider instability
The tit-for-tat air strikes across the porous border between the two neighbors have stoked tensions between nuclear-armed Sunni-majority Pakistan and Shiite-dominated Iran, and fueled fears of wider instability in the region.
Iran is a major backer of militant groups in the Middle East, including Hamas in Gaza, Hezbollah in Lebanon and the Houthis in Yemen.
Hamas and Hezbollah are designated terrorist groups by Germany, the US and Israel. Washington also added the Houthis to its terrorism list on Thursday.
Pakistan's former Foreign Minister Hina Rabbani Khar told DW that any concerns Iran had about terrorism or separatism should have been addressed through diplomatic channels rather than military action.
"I can just certainly say Iran did a grotesquely stupid, wrong thing," she said. "I don't think Pakistan had many options. I'm not in government right now, I can speak openly."