TOPSHOTS A child takes part in a candlelight vigil in Hong Kong on June 4, 2015, to mark the crackdown on the pro-democracy movement in Beijing's Tiananmen Square in 1989. Tens of thousands were expected to mark the 26th anniversary of the Tiananmen Square crackdown, organisers said, as they call on people to "stay united" as the city faces frustrations over its own democratic reforms. AFP PHOTO / DALE DE LA REY