Amid recent squabbles over alleged incursions and violations by the Chinese Army, soldiers of the People's Liberation Army on military vehicles reportedly stopped Indian patrolling in North Ladakh.
The Indian patrol party was shown a banner telling them they were in Chinese territory and that they could not proceed to the posts, located 14 kilometres up in the higher reaches along the Line of Actual Control (LAC), reports said.
India and China have a long running dispute over territorial boundaries, especially over Arunachal Pradesh and parts of Ladakh under Jammu and Kashmir.
In 1962 China and India fought a brief war over Aksai Chin (Ladakh region) and Arunachal Pradesh, but in 1993 and 1996 the two countries signed agreements to respect the Line of Actual Control.
The 4057 km-long Line of Actual Control (LAC) is the effective border between India and People's Republic of China (PRC).
In May this year the two sides were embroiled in a standoff after New Delhi alleged Chinese troops intruded nearly 20 kilometres into Indian territory.