A group of political activists, including Demosisto's Joshua Wong, has testified at the US congress, lobbying support for tougher US action to counter what they describe as Beijing's harder line on Hong Kong. Altis Wong reports.

Liberal Party leader Felix Chung says it is unfair that the US Congress is listening to only one side of the argument over whether to approve legislation on Hong Kong's autonomy. He told Ian Pooler that he would not be surprised if the Hong Kong Human Rights and Democracy Act is approved.

The MTR Corporation will bring in overseas experts to investigate Tuesday's train derailment near Hung Hom station in which eight people were injured. Services are gradually resuming between Hung Hom and Mong Kok East, after three derailed carriages were put back on the tracks. Damon Pang reports.

Roundtable lawmaker Michael Tien says he believes Tuesday's train derailment may have been caused by a lock system that prevents tracks switching directions. Eight people were injured when three carriages in the middle of the train veered off the tracks at this diverting point. Tien, the former chairman of the Kowloon-Canton Railway Corporation which used to operate the line, says he still has confidence in the MTR Corporation. He told Samantha Butler more about the possible cause of the derailment.

The Chief Executive Carrie Lam says dialogue sessions her government is planning to hold with people from "all walks of life" are not a gimmick, and officials are committed to reaching out to the community amid the ongoing anti-government protests. Lam says members of the public will be free to sign up for the first session to be held next week. Wendy Wong reports.

Researchers from the Chinese University say a new pre-natal test they introduced earlier this year has proven to be more effective than conventional tests in identifying rare, life-threatening genetic disorders in foetuses. Violet Wong reports.

Beer giant, Anheuser-Busch InBev, has kicked off a second attempt to spin off its Asian business in Hong Kong in what could be the world's second largest listing this year. Altis Wong reports.