China accused India of incursion into its territory between Sikkim and Tibet, with officials saying Indian border guards had obstructed normal activities on the Chinese side.
This comes after India recently accused Chinese troops of incursion on its Nathu La pass area, which is used by Indians going for pilgrimages to Hindu and Buddhist sites in Tibet.
Both countries had in 1967 clashed over the disputed region, and tensions have continued to flare in the area from time to time.
