Maguindanao del Sur, Feb. 21 -- Military and police forces here have launched a manhunt against motorcycle-riding men who tossed a hand grenade inside an Army outpost that wounded two soldiers and a militiaman Tuesday afternoon.

Major Saber Balogan, civil-military operations chief of the Army's 601st Infantry Brigade, said the attack was perpetrated by the local Dawlah Islamiya (DI) terror group.

"It could be a retaliation by DI group members due to a successful military operation against them in Maguindanao del Sur," Balogan said in a radio interview Wednesday.

He identified the victims as Sgts. Jester Arsulo and Bryan Baylon, and also Datu Nor Akmad, a member of the Civilian Armed Forces Geographical Unit (CAFGU), all under the Army'...