Philippine security forces wet on high alert in the south of the country on Sunday, after military intelligence reported sightings of Islamist militants in the region following the arrest of an al Qaeda-linked leader.
Khair Mundos, an expert bomb-maker and the "spiritual leader" of the Abu Sayyaf faction, was arrested last week by a team of police officers and Special Forces. Mundos is wanted by the United States. A$500,000 bounty is up in exchange for his arrest.