The officers, who graduated from the Philippine Military Academy between 1995 and 1997, are backed by "between 40-50 men" who are "fully armed and can do a lot of damage," he told a news conference at the presidential palace.

He assured Arroyo of the "full support of the armed forces of the Philippines."

Arroyo earlier Saturday announced the discovery of a coup plot against her and ordered a manhunt for the conspirators.

"They deserted their posts and brought weapons," Abaya said. "We can assume that they are here in Metro Manila."

WAR.WIRE