The bus, heading from Turbat to Quetta, fell into the ravine near Washuk town, around 700 kilometres from Quetta, the capital of Balochistan province.

The accident was a result of overspeeding, according to the report, which said that women and children were among the deceased.

The accident took place after the tyre of the passenger bus burst, Geo News reported quoting rescue officials.

At least 28 people were killed in the accident. About 22 people sustained injuries in the accident and were sent to the Civil Hospital in Basima.

Road accidents are common in Pakistan where traffic rules and safety standards are hardly followed.

On May 18, at least 13 people belonging to the same family were killed and nine others were injured as a truck plunged into a ditch in Punjab's Khushab district.

On May 3, at least 20 people lost their lives while 21 others sustained injuries after a passenger bus veered off a narrow mountain road and plummeted into a ravine in Gilgit Baltistan.