Pakistan on Thursday alleged that India and Afghanistan were behind last month's suicide attack on a shuttle bus in the country's restive Khyber Pakhtunkhwa province that killed 13 people, including nine Chinese engineers.
The bomb attack took place in the Dasu area of Upper Kohistan district where a Chinese company is building a 4,300-megawatt hydropower project on the Indus river.
At least 13 people were killed when the bus carrying Chinese engineers and workers to the site of the under-construction Dasu Dam exploded on July 14.