MANILA—The Philippines vowed to destroy those behind twin bombings that killed 20 people during a Jan. 27 church service in the country’s restive south, six days after a referendum on a peace agreement between the government and Filipino Muslims in the region returned an overwhelming “yes” vote.
The attack wounded more than 100 people and was one of the deadliest in recent years in a region long plagued by instability. It came amid hope and excitement about the ratification of a devolution plan that aims to bring development, jobs, and peace to one of Asia’s poorest and most volatile places.





