The rebels claimed that eight were killed and four others were wounded in the ambush.
In a statement, Mario Serano, spokesman of the Front Monterosa of the National Democratic Fronts Western Mindanao Command, claimed responsibility for the ambush and promised to extend support to the families of the three civilians.
Serano said the Reconnaissance Company was responsible for the killing of nine New Peoples Army (NPA) guerrillas in Barangay Langob in Calamba, Misamis Occidental last July.
The NDF called the attention of the Armed Forces to clear its detachments and camps of civilians who may be caught in the crossfire during NPA attacks.
The military and the police are still tracking down the rebels behind the ambush in the hinterlands of Misamis Occidental to give justice to the slain soldiers and civilians.