Hundreds of tribal police in the northwestern Khyber region have quit their jobs because of militant threats, even as Pakistani forces reported killing 22 insurgents in an ongoing military operation there, AP qouted officials as saying. Pakistan began its latest offensive in the Khyber tribal region on Sept. 1 and says it has killed over 150 militants. The fighting has caused thousands of residents to flee. Paramilitary troops Saturday destroyed three militant hide-outs and killed 22 insurgents, the Frontier Corps said in a brief statement. It is impossible to verify accounts of fighting there because the army is blocking roads into the region. -- SPA