Suspected Muslim rebels ambushed a minibus Tuesday, executing at least six passengers. In separate attacks, a bomb exploded outside a church, injuring five people and nine separatists died in a clash with soldiers. All three incidents took place in the southern Philippines, where Muslim militants for decades have waged a guerrilla war to push for independence from the largely Roman Catholic nation. The ambush was on a section of highway linking the cities of Cotabato and General Santos on the main southern island of Mindanao. Gunmen forced the bus to stop, then led away the male passengers and executed them on a dirt road off the highway, a 24-year-old survivor told a local radio station from a nearby hospital. Full Story