The soldiers and militiamen manning the riverside patrol base in Barangay San Pedro repelled the midday attack by about 60 New Peoples Army guerrillas.
One militiaman was also wounded, said Maj. Gen. Samuel Bagasin, commander of the Armys 4th Infantry Division.
The rebels opened fire with grenade launchers, killing one soldier instantly. The firefight lasted an hour, Bagasin said.
The other outpost defenders three members of the Army special forces and 12 militiamen used a network of trenches to escape further harm and inflict casualties on the attackers, Bagasin said. Ben Serrano, Jaime Laude And Roel Pareño