Candles lit outside US consulate as police secures street in Hong Kong on Tiananmen anniversary

Rows of flameless candles flickered in the windows of the US Consulate in Hong Kong on Tuesday to mark the 35th anniversary of China's Tiananmen Square crackdown on pro-democracy protests. China has heightened security on the day, setting up checkpoints and deploying police vehicles on a major road leading to the square in Beijing.