LIMA, March 3 (Xinhua) -- Peruvian President Alan Garcia said Monday that Colombia's incursion into the Ecuadorian territory to attack Colombian rebels was "unacceptable," calling on the Organization of American States to clarify what anti-terror measures are appropriate.

    Garcia said he would not allow such a thing to happen in Peru, adding that Colombia has clearly violated international laws.

    "There should be a clear commitment that none intervenes inside another nation's territory," he said.

    Ecuador broke off diplomatic relations with Colombia on Monday, 48 hours after Colombian police and military officials killed rebels from that nation's largest rebel group, the Revolutionary Armed Forces of Colombia (FARC), at a camp in Ecuador 3 km from the border.

    Ecuador says the Colombian military aircraft trespassed at least 10 km from the border.

    The raid killed 21 FARC fighters, including Edgar Devia, better known by his alias Raul Reyes, FARC's No. 2 official and the organization's official spokesman.

    Ecuador's army sent troops on Monday to its northern border with Colombia to boost security.