Two bombs minutes apart struck tribal police assigned to guard polio workers in northwest Pakistan on Saturday, killing 11, AP quoted police as saying. Police official Nawabzada Khan said the first of the two bombs struck an escort vehicle in the Lashora village of Jamrud tribal region in Khyber Pakhtunkhwa province. It wounded six officers, but caused no deaths. Khan said minutes later, another roadside bomb struck a convoy of tribal police officers dispatched there to transport victims of the first attack, killing 11 officers and wounding six. He said gunmen also opened fire on officers, triggering a shootout that was still going on. A government administrator Nasir Khan said they had launched a massive hunt in effort to trace and arrest the attackers. He confirmed 11 deaths and 12 injuries. No one claimed responsibility for the two separate bombings. -- SPA 14:32 LOCAL TIME 11:32 GMT تغريد