HONG KONG (AP) -- Two pro-democracy activists behind a group that for decades organized a vigil that commemorated people killed in Beijing's Tiananmen Square crackdown in 1989 will stand trial on Thursday, in another landmark case brought under a China-imposed national security law that has practically crushed protests in the semiautonomous Chinese city.

By Jessie Pang and James Pomfret HONG KONG, Jan 22 (Reuters) - Hong Kong's High Court will begin on Thursday a landmark subversion trial of the leaders of a group that once organised annual commemorations of Beijing's Tiananmen Square crackdown on student-led pro-democracy protests in 1989.

HONG KONG -- Two former leaders of a Hong Kong pro-democracy group that for decades organized a vigil commemorating people killed during Beijing's 1989 Tiananmen crackdown are set to stand trial in a case brought under a national security law that has all but silenced dissent in the city.