An Army officer with the rank of lieutenant was among the casualties on the government side, GMA News reported.
According to AFP Public Affairs Office chief Marine Col. Edgard Arevalo, two battalions from the Philippine Army engaged an estimated 120 ASG members in a firefight.
Arevalo also said Army reinforcements made sure to provide support to ground forces against the retreating ASG members.
Reports on the clash have yet to state the number of casualties the ASG suffered but one of their sub-leaders, Jamiri Jawong Jauhari, was apparently killed.
Pursuit operations are currently ongoing against the ASG.
Duterte stated that he was shutting down all possible peace talks with the ASG after he lost respect for them for their brutal acts against their victims.