COTABATO CITY, Aug. 18 -- Police authorities in Sultan Kudarat and Maguindanao del Sur provinces have launched a joint manhunt against a man who ambushed the vehicle of a municipal councilor in Lambayong, Sultan Kudarat on Monday.

In a statement, the Maguindanao del Sur police provincial office said it is working with the Lambayong municipal police station to identify and arrest the gunman who fired at the pickup truck of Bin-Nazriff Buayan Utto Silongan, 40, municipal councilor of Rajah Buayan, Maguindanao del Sur.

The Lambayong police, headed by Maj. Jayson Ortega, is still conducting a follow-up investigation.

"I was on board the vehicle with a companion heading to Rajah Buayan from Tacurong City when we were fired upon at about 10...