24th Light Infantry Battalion (LIB) reportedly lost two men when its camp, located about a mile outside the town of Namtu, was attacked.
The Burmese military claims it has seized a strategic hillside base of the MNDAA overlooking Laogai. However, the Kokang rebels say they are holding out.
The conflict between government forces and Kokang rebels has intensified north of Laogai this week with both sides claiming the advantage.
Burmese government forces have captured a Kachin rebel outpost in Kar Mine, near the jade mining town of Hpakant.