QUETTA: At least four women belonging to the ethnic Hazara Shia community were killed and one injured when unidentified assailants opened fire on a bus on Kirani road near Pud Gali Chowk area of the provincial capital on Tuesday evening. Pakistani security officials and residents gather around ambulances carrying the bodies of Shiite Muslim women killed in an attack by gunmen at a hospital in Quetta ©Banaras Khan (AFP)

"The bus was travelling from one locality of Hazaras to the other," Cheema said. Sectarian violence -- in particular by Sunni hardliners against Shiites who make up roughly 20 percent of Pakistan's 200 million people -- has claimed thousands of lives in the country over the past decade.
An apparent sectarian attack by two motorcyclists who open fire on a bus traveling to Hazara Town, Quetta, Pakistan, kills four women from Pakistan's Shia Hazara and injures two other people.