Afghan forces shot dead three Pakistani civilians who had crossed the border mistakenly, dpa quoted a Pakistani security official as saying Friday. Three shepherds from the Tashaddo village in Pakistan"s south-western province of Balochistan strayed early Thursday into the Zangeer area of the Afghan province of Zabul, said Murtaza Baig, a spokesman for Pakistan"s border security forces. "Our Afghan colleagues informed us late on Thursday that they had shot dead three Pakistanis in their area, and we received their bodies this morning," Baig said Friday by phone from Quetta, Balochistan"s capital.