Twenty-two people were killed in a bomb attack on two buses carrying Shia pilgrims returning from Iran in Mastung area of Balochistan on Tuesday night.

According to a Quetta based journalist Shahzada Zulfiqar, district officials said that the explosion was caused by an Improvised Explosive Device (IED) on the roadside on the main Quetta-Iran highway.

The front of one of the buses came in contact with the IED setting off the explosion. A Bomb Disposal Squad is on its way to the location of the blast in Dareen Garh area of Mastung which is 55 km from Balochistan’s capital city.

About 26 people were injured and some missing. Security personnel escorting the buses were also killed in the blast apart from several women and children.