Sources said Reuters partner ANI said Chinese and Indian troops clashed in the Tawang sector of India's Arunachal Pradesh state on December 9, a sector that was largely dominated by Indian and Chinese troops.
The report said that the face-off on Friday resulted in minor injuries to few soldiers on both sides.
In June 2020, Indian and Chinese troops fought each other in hand-to-hand combat in the Galwan valley in Ladakh, abutting the Chinese-held Tibetan plateau.
Twenty Indian soldiers were killed, with China suffering an unknown number of casualties, and both sides ramped up their military presence, moving men, weapons and supplies to the high-altitude desert region.
China and India share an undemarcated 3,800 kilometer border, where their troops previously adhered to long-standing protocols to avoid the use of firearms along the de facto border known as the Line of Actual Control.