(Updated 9:35 p.m.) In separate statements, US Secretary of State Hillary Clinton and US Ambassador to the Philippines Harry Thomas Jr. on Sunday welcomed the framework peace agreement between the government and the Moro Islamic Liberation Front, which Thomas said holds much promise for Mindanao.

The ambassador said the US has long supported peace and stability in the region, and "will continue to look for ways to support Mindanao's people as they accelerate broad-based and inclusive growth."

"We welcome the announcement by the Government of the Philippines and the Moro Islamic Liberation Front that the two sides finalized a framework peace agreement. While much work remains, successful implementation of this agreement would improve security, stability, and development for the people of Mindanao," said Thomas in a statement released by the US Embassy.

Thomas also acknowledged the steps taken by all parties to maintain the ceasefire that has been in place since 2009.

"We fully support the ongoing peace process and hope the parties can continue to avoid violence as they work toward a final resolution that will last for generations and benefit all the people of the Philippines,” he added.

Clinton also issued the following statement on the US State Department's website: "The United States welcomes the announcement of the framework agreement between the Government of the Philippines and the Moro Islamic Liberation Front. This agreement is a testament to the commitment of all sides for a peaceful resolution to the conflict in the southern Philippines. The next steps will be to ensure that the framework agreement is fully implemented. We encourage all parties to work together to build peace, prosperity and greater opportunities for all the people of the Philippines." — BM, GMA News