Security forces on alert

In custody: Abduljihad showing his severed left arm to police personnel at Cap Crame police headquarters in Quezon city, Philippines. — AP

Security forces here were on alert for possible reprisal attacks after arresting a key leader of an Islamic State-linked militant group accused of kidnapping and beheading several foreigners.

Abduljihad Susukan, a member of Abu Sayyaf, was detained in the southern city of Davao and flown to the capital Manila on Friday, where he was being held at the national police headquarters.