Malaysian Ambassador Malik Melvin Castelino on Tuesday urged the Philippine government and the Moro Islamic Liberation Front (MILF) to "work together" to resolve their differences after the armed group postponed disarming its remaining fighters.

"This is something that the parties will have to resolve among themselves," Castelino said in a chance interview at the sidelines of a diplomatic forum hosted by the Asia Society.

A final batch of 14,000 MILF combatants have yet to disarm.

The move comes as the Bangsamoro Parliamentary Elections is set on October 13.

Malaysia was the facilitator of the peace process between the Philippine government and the MILF, which led to the signing of a peace deal, called Comprehensive Agreement on the Bangsamoro (CAB), in March 2014 ending decades-old armed conflict in Mindanao.

Castelino said he has reached out to concerned parties to discuss the matter.

Under the CAB, the MILF agreed to give up their aspiration for a separate Muslim state in southern Philippines in exchange for autonomy.

Presidential Assistant for Bangsamoro Transformation David Diciano belied the MILF's claims that the government substantially failed to deliver on its socio-economic commitments. DMS