"We are very disturbed by the growing number of Chinese military personnel and many more trucks and trucks load of paramilitary forces with automatic machine guns moving towards Tibet," he said.
"We are very disturbed and we condemn the killings of innocent Tibetans who are simply asserting their freedom of speech," stated Sangay and called on the United Nations to send fact-finding delegations to investigate China's hardliner policies inside Tibet.
Condemning the Chinese military invasion into Tibetan areas and the recent incidents of public shootouts at protestors agitating against Chinese authoritarianism, he said, "The Chinese government should also do their own investigation, an objective, truthful investigation which will clearly reveal that their hardliner policies are not working."
"These policies are ought to be revised and more moderate policies towards the Tibetan people should be introduced," he concluded.
China has ruled Tibet since Communist troops marched in 1950
Since February 2009, a total of seventeen Tibetans inside Tibet have self-immolated in protest of the Chinese repressive policies and demanding for the return of the Dalai Lama.
Twelve out of the Seventeen succumbed to their injuries and the rest are either in a poor shape or are battling for life.
Sources have revealed that three Tibetans were killed and several others injured when the Chinese police opened fire on the Tibetans who had gathered to protest in Drango region of the Kham province on the day of the Chinese New Year.
Reports suggest that this crackdown has intensified after leaflets calling for Tibetans to skip New Year celebrations this year to pay homage to the martyrs were circulated in Drango.