Lt. Col. Franklin del Prado, spokesman of the Armys 6th Infantry Division, said the victims were treated at the government-run University of Southern Mindanao in Kabacan.
Police still have no solid clues on the grenade thrower nor his motive in pulling off the attack.
More than 30 people were killed and scores wounded in previous bombings in Kabacan, an agricultural town in the first district of North Cotabato. John Unson