Philippine marines killed at least six Muslim extremists and captured one of their jungle lairs in a clash in the south, military officials said on Monday. Backed by village militias, the marines launched an assault over the weekend after several Abu Sayyaf militants were monitored in their jungle lair near Talipao town on Jolo Island, marine brigade commander Col. Jose Cenabre said.

Marine officers involved in the fighting said three militants were killed in a clash and three more died later in military shelling. Six village militias on the side of the marines were wounded. Marines were clearing the captured Abu Sayyaf encampment of booby traps and searching for homemade bombs and rebel documents.

Abu Sayyaf gunmen are still holding more than a dozen hostages in jungle-clad Jolo in Sulu province, including two European bird watchers who were kidnapped last year. The captives were not in the Abu Sayyaf encampment that came under attack over the weekend, Col. Jose Cenabre said.

The United States lists the Abu Sayyaf, which is notorious for kidnappings for ransom, beheadings and bombings, as a terrorist organization. There are over 300 Abu Sayyaf armed fighters to be estimated to have survived years of U.S.-backed Philippine offensives.

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