Supreme commander Thanasak Patimaprakorn has declined to comment on a Wadah group proposal to seek Indonesia's help in tackling the insurgency in the far South.
People are entitled to make proposals, but "responsible authorities" will be the ones to eventually make decisions based on the national interest, he said.
The Wadah group suggestion comes amid continuing violence in the Muslim-dominated southernmost provinces, despite formal peace talks between the government and separatists kicking off last month.
The group consists of influential Muslim politicians based mainly in Pattani, Yala and Narathiwat. It gained media attention recently after nine of its members were appointed by Deputy Prime Minister Chalerm Yubamrung as advisers on security operations in the far South.
The group suggested that Indonesia, which has the world's largest Muslim population, could help negotiate for peace.
Gen Thanasak said he is ready to support the government by reinforcing the Internal Security Operations Command, but would not offer an opinion on the Wadah group proposal.
Meanwhile, a former insurgent suspect was killed in Pattani's Yaring district yesterday, police said.
Yuso Matiyo, 55, was gunned down by suspected insurgents on his vegetable plantation in Ban Bue No Moo 3.
Investigators said Yuso had been the target of three previous unsuccessful sniper attacks.
Police are still working to determine the motive behind the attack.
The victim was once listed as an insurgent suspect but was later cleared after he turned himself in to authorities to prove his innocence.
Also in Yaring district yesterday, a garbage collector was severely injured by a bomb blast on Talo Kapo Beach.
The bomb detonated when Mayasin Samae, 42, lifted a suspicious box while sorting through garbage.
Investigators believe whoever planted the bomb was targeting police who regularly patrol the beach, which is a popular tourist spot.
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Writer: Wassana Nanuam & Abdulloh Benjakat