More than 100,000 people used to cram into a Hong Kong park to remember the Tiananmen massacre. This year, some found a defiant way to continue their vigil.

Amid growing censorship at home under the rule of Xi Jinping, efforts to document the massacre of 4 June, 1989, are intensifying abroad

Vigils marking anniversary have shifted to overseas cities in past years

In the Chinese territory of Hong Kong, police also stepped up security to prevent any commemoration of the 1989 crackdown on pro-democracy protesters in Beijing.

As vigils to mark the 37th anniversary were held around the world, Chinese authorities reportedly banned families of those who died in 1989 from visiting their graves.

More than 100,000 people used to cram into a Hong Kong park to remember the Tiananmen massacre. This year, some found a defiant way to continue their vigil.