Pakistan’s government is vowing to track down those involved in a deadly bus attack in Karachi, which has left at least 43 people dead. <br /><br /> Militant group Jundullah, which has pledged allegiance to ISIL and has links with the Pakistani Taliban, says it was behind the killings. <br /><br /> Gunmen boarded the vehicle and opened fire on terrified passengers.<br /><br /> Police say all those on the bus were Ismailis, a minority Shi’ite Muslim sect. Pakistan is mostly Sunni. <br /><br /> The vehicle was in a relatively deserted area, on the outskirts of Karachi, when the gunmen launched their attack. <br /><br /> The passengers were reportedly on their way to a community centre. <br /><br /> Pakistan’s Prime Minister Nawaz Sharif has condemning the bloodshed. <br /><br /> He said the attack was deplorable, an attempt to spread chaos in the country and provoke fighting. <br /><br /> Sharif added that communities, which have never caused controversy, were being drawn in. <br /><br /> Posts on Ismaili social media pages are encouraging people not to do anything that might
