Pakistan says Iran airstrikes killed 2 children on its territory

Pakistan said Wednesday that Iran launched an airstrike on its territory that killed two children, after Tehran launched attacks in Iraq and Syria against what it called "anti-Iranian terrorist groups".

Pakistan denounced the strike, near the nations' shared border late on Tuesday, as "completely unacceptable", saying it was unprovoked.

Iran offered no official comment immediately but its state-run Nour News agency said the attack destroyed the Pakistani headquarters of the jihadist group Jaish al-Adl (Army of Justice).

Jaish al-Adl, which was formed in 2012, is blacklisted by Iran as a terrorist group and has carried out several attacks on Iranian soil in recent years.

The strike came after Iran launched missile attacks on "spy headquarters" and "terrorist" targets in Syria, and in Iraq's autonomous Kurdistan region.

The Iranian strikes add to multiple crises across the Middle East, with Israel waging a war against Hamas in Gaza and pro-Palestinian Huthi rebels in Yemen commercial attacking vessels in the Red Sea.

Pakistan's official statement did not say where the strike took place. But Pakistani social media accounts said blasts occurred in Balochistan province, where the two countries share a sparsely populated border of nearly 1,000 kilometres (620 miles).

"This violation of Pakistan's sovereignty is completely unacceptable and can have serious consequences," Pakistan's foreign ministry said in a statement.

It said the strike late Tuesday "resulted in the death of two innocent children while injuring three girls".