"Chinese investigators visit site of Pakistan bus blast", 17 July 2021

Chinese investigators, accompanied by Pakistani counterparts, on Saturday visited the site of a bus explosion in which 13 people, including nine Chinese workers, were killed earlier this week, multiple sources said.

The blast in northwest Pakistan on Wednesday sent the bus hurtling over a ravine. Pakistan initially blamed a mechanical failure but later said traces of explosives had been found and terrorism could not be ruled out. [...]

Beijing had initially called it a bomb attack but backed away from the assertion after Pakistan stated it was an accident. Later Beijing said it would send a team to help investigate the matter jointly with Pakistan. [...]

The Chinese workers killed on the bus were employed at the Dasu hydroelectric project, part of the China-Pakistan Economic Corridor (CPEC), a $65 billion investment plan aiming to link western China to the southern Pakistani port of Gwadar.