Pakistan launched deadly new airstrikes on Afghanistan early Wednesday, ending a month of calm following what Islamabad previously described as “open war” between the neighbors that has defied international efforts to bring a lasting peace.

Afghanistan said the strikes hit the eastern provinces of Khost, Kunar and Paktika, and government spokesperson Zabihullah Mujahid said 13 people were killed—11 children, one woman and an older man—with 14 other civilians wounded.

Pakistan confirmed it carried out strikes, saying it targeted militant hideouts and infrastructure linked to recent attacks inside Pakistan and that 26 militants were killed. The two sides often give widely differing casualty figures.

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