Four suspected New People's Army (NPA) members were killed by troops in an encounter in Magpet, Cotabato on Saturday.
Captain Randy Llunar, chief of the 901st Infantry Brigade's civil military operations, said they received an information about the presence of an undetermine number of NPA members in Barangay Manobo.
Llunas said the responding troops were met by gunfire from the rebels upon their arrival at the barangay.
The rebels retreated after a one-hour firefight, he said.
He said residents in the area told troops about the four NPA fatalities. They also informed troops that at least seven rebels were injured during the firefight, he added.
Two Army members were also hurt.
Pursuit operations are ongoing against the rebels.