Four Afghan civilians were killed and five others wounded in an overnight clash between Pakistani and Afghan forces along their shared border, an Afghan official said Friday, in a sign of rising tension between the two as they hold peace talks in Istanbul.
However, a tense calm largely prevailed along the Chaman border in southwest Pakistan, where the two sides briefly exchanged fire Thursday night, with both sides blaming the other for the breach of last month's ceasefire brokered by Qatar.
