Manila, May 21 -- The Criminal Investigation and Detection Group (CIDG) operatives arrested the incumbent mayor of South Upi, Maguindanao del Sur and his wife for their alleged involvement in the killing of a vice mayor in August last year.

In a statement Wednesday, CIDG Maj. Gen. Nicolas Torre III said South Upi Mayor Reynalbert Insular and his wife, Janet, were arrested on Tuesday in Barangay Making, Parang, Maguindanao del Norte.

Authorities nabbed the couple after Cotabato City, Maguindanao Regional Trial Court Branch 27 issued a warrant of arrest for murder, frustrated murder, and attempted murder against them on May 19.

On Aug. 2, 2024, South Upi Vice Mayor Roldan Benito and his security aide, Weng Marcos, were killed in an ambus...