Pakistani security forces repelled an attempted infiltration from Afghanistan across the Kurram border (a district in Khyber Pakhtunkhwa province bordering Afghanistan) on Tuesday, with Afghan Taliban fighters subsequently opening unprovoked fire on Pakistani checkposts. Pakistani troops retaliated by targeting multiple Taliban positions, causing several operatives to abandon their posts, while the infiltrators — identified as members of the banned Tehreek-i-Taliban Pakistan, designated by Islamabad as Fitna-al-Khawarij — had attempted to cross from Afghanistan's Nangarhar and Paktia provinces. The incident deepens an already acute security crisis along the border: Pakistan conducted airstrikes on Afghan border-area militant sites just a day earlier, and a UN monitoring report has confirmed that Afghan Taliban support for the TTP has fuelled a surge in the frequency and lethality of terrorist attacks inside Pakistan.