Metro Manila (CNN Philippines, June 11) — Authorities on Tuesday presented to the media six alleged Abu Sayyaf members involved in terrorist acts.

The National Bureau of Investigation (NBI), in a media briefing, said the six were arrested in separate operations in Taguig, Bataan, and Zamboanga City on May 16 and 20.

“The six arrested were involved in various terrorist activities, ranging from ambush, kidnap for ransom, bombing in Southern Philippines, and recruitment of other members,” said NBI spokesperson Ferdinand Lavin.

The six, identified as Azmier Maalum, Amar Assan, Musa Tahil Sampang, Jamil Ibrahim, Yong Aming, and Majuk Tahil Amil, were captured in joint operations of the National Bureau of Investigation, the Navy and police.

Maalum was allegedly involved in the 2001 kidnapping of Golden Harvest plantation workers in Basilan. Sampang was linked to several bombing incidents also in Basilan.

Authorities in April also arrested a suspected Abu Sayyaf member working as a security guard in a Muntinlupa City office building.

CNN Philippines Correspondent Gerg Cahiles contributed to this report.