Superintendent of Rangamati Police Alamgir Kabir confirmed the matter.
Acting on a tip-off a patrolling team operated a drive at Raoutila of Naniarchar at 5:30 to arrest alleged extortionists of UPDF.
Sensing presence of law enforcers, UPDF men fired gunshots on Army men while law enforcers also retaliated killing two UPDF men dead on the spot.
The patrolling team also seized an AK-22 SMG from the spot.
The injured Army man was airlifted to Chattogram Combined Military Hospital (CMH) in the evening- he is currently out of danger.
UPDF are a regional political party based in the Chittagong Hill Tracts founded on December 26, 1998. The party seeks to establish full autonomy in the Chittagong Hill Tracts through peaceful and democratic means, but have recently taken up arms after getting caught up in a turf war for establishing influence in the CHT region.
Also read: UPDF man gunned down in Rangamati