A suicide bomber killed at least 15 people, most of them police, outside a polio eradication centre in the Pakistani city of Quetta on Wednesday, the latest militant attack on the anti-polio campaign in the country.<br />Two militant groups the Pakistani Taliban and Jundullah, which has links with the Taliban and has pledged allegiance to Islamic State - separately claimed responsibility for the attack.<br />"It was a suicide blast, we have gathered evidence from the scene," Ahsan Mehboob, the provincial police chief told Reuters.<br />Ahmed Marwat, who identified himself as a commander and spokesman for Jundullah, said his group was responsible.<br />"We claim the bomb blast on the polio office.<br />In the coming days, we will make more attacks on polio vaccination offices and polio workers," he said by telephone.
