“Gunmen holding three foreigners and one Filipina hostage slipped past a naval cordon and escaped to remote mountains in the southern Philippines, leaving few clues to their identities, police said on Wednesday (Sep 23). Elite army troops were trying to track the bandits while air force helicopters were readied for a possible rescue as the gunmen trekked into Davao Oriental province, a hotbed of Maoist and Islamic rebels, said Senior Superintendent Aaron Aquino, the region’s deputy police commander.”
Source: Philippine gunmen haul hostages into remote mountain region – Channel NewsAsia