As Chinese leader stated earlier they would declare war against Tibetan "separatists", the scene in Lhasa appear to be not less than a war zone. Read RFA's release of what stated in a Chinese official document...
http://www.rfa.org/english/news/tibet/deployed-06012012161632.html
http://www.rfa.org/english/news/tibet/deployed-06012012161632.html