Quetta, Pakistan, Rajab 19, 1433, Jun 9, 2012, SPA - Police say gunmen have shot and killed four police officers who were guarding a railway track in southwestern Pakistan. Senior police officer Shaukat Ali says Saturday's attack took place on the outskirts of Quetta, the capital of Baluchistan province, according to a report of the Associated Press. --SPA 11:56 LOCAL TIME 08:56 GMT www.spa.gov.sa/1005861