Islamabad accuses Afghanistan of failing to act against militant groups that carry out attacks in Pakistan, which the Taliban government denies. […] An Afghan official reported multiple civilians wounded near the Torkham border crossing, at a camp for people returning from Pakistan.
The groups in question are the Pakistani Taliban (TTP) and ISIS-K.
I’m not sure if it’s that clear, I’ve also seen accusations the other way.
https://en.wikipedia.org/wiki/Cypher_No._I-0678
I think in reality, the world has shifted a lot from the bipolarity of the cold war and it’s no longer possible (or productive) to try and figure out which “side” every nation is on.