China said Indian forces crossed into territory it holds along their disputed border and fired warning shots at a Chinese patrol in a move it called a "serious military provocation" and a violation of their agreements.
The nuclear-armed rivals have been engaged in a tense standoff in the cold-desert Ladakh region since May, and their defence ministers met on Friday in Moscow in the first high-level direct contact between the sides since the standoff began.
China's western military command said the incursion occurred yesterday along the southern coast of Pangong Lake in the area known in Chinese as Shenpaoshan.
After shots were fired, Chinese forces took "necessary measures to stabilise and control the situation," the command said, in the statement citing spokesman Zhang Shuili.
It demanded the Indian forces withdraw and investigate the move to open fire. There was no word of casualties on either side.