Senate hearing on Mamasapano clash

A police operation took place on Sunday, January 25, 2015, at Tukanalipao, Mamasapano, Maguindanao, between theSpecial Action Force (SAF) of the Philippine National Police (PNP) (allegedly joined by United States Army Special Forces and the Federal Bureau of Investigation) and the Bangsamoro Islamic Freedom Fighters (BIFF) and the Moro Islamic Liberation Front (MILF).