U.S. President Donald Trump said in a tweet Wednesday that he had offered to mediate

U.S. President Donald Trump said in a tweet Wednesday that he had offered to mediate. There was no immediate response from India or China.

The deadlock began on May 5, when troops clashed on the banks of Pangong Tso -- a glacial lake at 14,000 feet in the Tibetan plateau -- leaving scores of soldiers on both sides injured. Since then there has been a steady build up of troops amid continuing face-offs.

Diplomats in New Delhi and Beijing have begun talks after negotiations between Indian and Chinese military officials on May 22 and 23 brought no results, the official said. China's move to step up incursions at two different locations along the 3,488 kilometer (2,167 mile) undemarcated border is a deviation from its earlier attempts to gain territory after the two nations fought a war in 1962, according to the officials.