The victims were Shi'a Muslim pilgrims of the Hazara community, suggesting the attack to have been a targeted killing of sectarian nature.

[1] Lashkar-e-Jhangvi, a Sunni extremist Pakistani militant group designated as a terrorist organization by Pakistan and the United States claimed responsibility for the attack.

A group of around 10 men on two vehicles, armed with rocket launchers and Kalashnikovs assault rifles,[4] stopped a passenger bus carrying pilgrims in the Ganjidori area of Mastung.

[5] The banned Pakistani Sunni extremist militant group, Lashkar-e-Jhangvi (LeJ) claimed the responsibility for the massacre.

[7] Thousands of women and children took part in the protest and demanded United nations to take notice of what has been happening to Hazara people[1] Protests, rallies and demonstrations were held in the wake of the terrorist attack in many different parts of the country, including in Karachi, Skardu, Muzaffarabad, Nawabshah, Sukkur, Ghotki and Multan.

[8] The President of Pakistan, Asif Ali Zardari, Balochistan Governor Zulfiqar Magsi, Chief Minister Aslam Raisani,[9] The Universal Muslim Association of America (UMAA)[10] and others strongly condemned the barbaric attack on Hazara Shia minority in Quetta.