COTABATO CITY --Two hand grenades were lobbed at the motor pool area of the University of Southern Mindanao Compound in Kabacan, North Cotabato around 7:30 p.m. Thursday, the military said.
According to the Army's 602nd Brigade, only 1 of the 2 grenades exploded.
None was reported injured in the explosion.
Authorities believe that an internal dispute among officials could be behind the incident.
The military also said that the blast had nothing to do with an improvised explosive device (IED) recovered near the Kabacan national highway the other week that hurt 2 individuals.