Beijing is taking a tougher stance following months of anti-government protests last year, in what activists see as an accelerating erosion of the city's rights and liberties.

China has long detested Hong Kong's vigil, the only such activity allowed on Chinese territory to commemorate victims of the crackdown, which remains a taboo subject on the mainland.

"Hong Kong is a vital human rights test case for Canadian foreign policy," says former diplomat.

China is using digital tools and draconian tactics to make sure no one discusses the 30th anniversary of its bloody Tiananmen Square crackdown.

In a statement posted to the company's Public Policy Twitter feed on Saturday, Twitter said "a number of accounts" had been suspended as part of efforts to target accounts engaging in "platform manipulation."

Next Tuesday marks 30 years since the protests, led by students who were joined by individuals from all walks of life, calling for political reform.

More than 2,000 people marched in Hong Kong on Sunday to mark 30 years since a pro-democracy protest in Beijing’s Tiananmen Square ended in bloodshed.

China's Foreign Ministry spokesperson responded to U.S. Secretary of State Mike Pompeo's comments on the Tiananmen Square crackdown with a stern rebuttal.

Justin Trudeau has brought Canada closer to China after agreeing with the Chinese premier to deepen the countries' relationships.

Participants laid a wreath and held a moment of silence at the annual anniversary vigil — the only large-scale public commemoration of Beijing's brutal crackdown held on Chinese soil.