Asked if he thought drugs gangs were behind it, Duterte said: "It is also being considered ... At least we know who made...
Malaysia's security agencies are on guard against IS spreading in the Muslim majority, but multi-ethnic Southeast Asian nation.
It was not immediately clear whether the men were seized by Abu Sayyaf
Experts say that Abu Sayyaf network is funded in part by ransom money worth tens of millions of dollars
Jakarta said seven Indonesian sailors had been kidnapped at sea off the southern Philippines, in waters where Abu Sayyaf is...
Coordinated patrols involve voyages by the different navies operating in their own territorial waters.
Abu Sayyaf does not normally free hostages unless a ransom is paid.
Police and military officials said it was unclear whether or not a ransom was paid for the men
Abu Sayyaf is also holding other foreigners, including one from the Netherlands, one from Japan, four Malaysians and 14 Indonesian tugboat...
The center will be designed to respond quickly to situations that could have a "strategic impact"
The armed forces chiefs of Indonesia, Malaysia and the Philippines would hold talks in Jakarta on May 3.
Abu Sayyaf has posted videos on social media sites pledging allegiance to Islamic State
The suspect was gunned down after he resisted arrest by a combined military and police team
Two Canadians and a Norwegian tourists were seized from yachts at a marina in the southern Philippines in September