HONG KONG - Chinese official visits Hong Kong amid tension

Hong Kong's government has mobilised thousands of police officers and cordoned off large parts of the city. It's all part of a massive big security operation for the visit of one of China's most senior politicians.
Paving stones have even been glued down so protesters can't use them as missiles.

INC News, 17/05/2016 - source: ©AlJazeera