Police suspect it was the work of Abu Sayyaf, a domestic militant group that has pledged allegiance to Islamic State and is notorious for its bombings and brutality.
The US took the bells as trophies after the 1901 clash and turned them into a memorial to the 45 fallen US soldiers. It killed hundreds or thousands of people in a counterattack.
The cleric’s home was raided after a tipoff claiming his prior knowledge of the bomb plot and connections with foreign operatives.
Philippines President Rodrigo Duterte has told a UN human rights expert to ‘go to hell,’ warning against interference in domestic affairs.
The European Parliament urged the Southeast Asian nation in a resolution to end "extrajudicial killings" and abandon plans to reintroduce the death penalty.