Hong Kong's anti-corruption watchdog on Monday charged a singer and prominent pro-democracy activist Anthony Wong with "corrupt conduct" at a 2018 election rally, the latest legal action against dissent by authorities in the Chinese-ruled city.

The Independent Commission Against Corruption (ICAC) said in a statement that Wong had provided "entertainment to induce others to vote" for pro-democracy activist Au Nok-hin in a 2018 legislative council by-election...