Pakistan said it had killed about 50 Afghan security forces and militants in fresh clashes on the border overnight.
Pakistan accuses Afghanistan of harboring armed groups, a charge denied by the government. Pakistan has been battling militant attacks that have increased since the Taliban took power in Afghanistan in 2021.
Escalating tensions are likely to destabilize the region, where groups including the Islamic State and al-Qaeda are trying to gain a foothold and reactivate.
The clashes briefly stopped on Sunday, following calls from Saudi Arabia and Qatar, but fighting soon resumed.
The Pakistani military said today that it had killed members of Afghan security forces and militants, as well as destroyed tanks and military positions.
Pakistani forces have rejected what officials said were "unprovoked attacks" but denied targeting civilians, after the Taliban government said more than a dozen people had been killed and more than a hundred wounded in Pakistani attacks on border areas of southern Afghan province of Kandahar.
Taliban government spokesman Zabihullah Mujahid said that Pakistan used light and heavy weapons in attacks on Spin Boldak in Kandahar.
According to him, Afghan forces returned fire, killed several Pakistani soldiers, captured military positions and seized weapons, including tanks.
The Pakistani military also targeted militant hideouts in the Afghan capital, two Pakistani security officials said on condition of anonymity.
Pakistan's border areas have been plagued by violence since 1979, when the country became the front line in the US-backed war against the Soviet Union.
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