Hong Kong media tycoon Jimmy Lai arrested under national security law

Hong Kong media tycoon Jimmy Lai (above) has been arrested over suspected collusion with foreign forces under the new national security law, his top aide said on Twitter, in what is the highest-profile arrest yet under the legislation.

Lai has been one of the most prominent democracy activists in the Chinese-ruled city and an ardent critic of Beijing, which imposed the sweeping new law on Hong Kong on June 30, drawing condemnation from Western countries...