In an interview with the Nikkei Asian Review last week, Tam said the new security laws will also be applied to foreign businesses and media.
The EU backing the USA move had said that China would face "very negative consequences" if it passed the national security bill. "If mild demands like asking China to honor its promises and legally binding treaties are already crossing the red line, then there is no step back", he said.
Alan Leong, chairman of Hong Kong's pro-democracy Civic Party, wrote that he agreed with Bütikofer's statement.
He said what he overheard was evident of how the Hong Kong government has resorted to the tactic of "making indiscriminate arrests" in an attempt to slow ongoing protests in the city. "But my answer is simple: I won't go".
Beijing appeared to have lost its patience in the face of widespread and often violent anti-government demonstrations in Hong Kong past year, moving to circumvent the city's own legislative council and enact the law at the national level on what critics said were weak legal grounds. He also called for other young people to consider leaving.
Benson Wong, a former assistant professor at Hong Kong Baptist University, said pro-democracy groups have successfully helped "put the Hong Kong question into the contexts of worldwide politics".
The latest announcement comes as China plans to move forward with a security law that would extend Beijing's reach into the semi-autonomous region.
When asked which officials exactly the restrictions target, Zhao said that they "knew this themselves, instinctively".
The visa restrictions against the officials and their relatives came a day after the Senate unanimously passed a bill that would place mandatory sanctions on Chinese officials who chip away at Hong Kong's autonomy and secondary sanctions on the banks and companies that do business with them.
Tian Feilong, executive director of the Center for Legal Studies in One Country Two Systems at Beihang University in Beijing, said the move clearly illustrates the logic of hegemony in U.S. diplomacy, as well as its attempt to interfere in another country's domestic affairs.
Li Zhanshu, chairman of the NPC Standing Committee, joined lawmakers in discussion. The police said in a statement that officers arrested 53 people for "unlawful assembly".
Pompeo said that China has undermined Hong Kong's autonomy by "announcing Beijing's authority to "supervise" Hong Kong's governance".
The bans are largely symbolic as officials from both countries are unlikely to visit the other, especially now that the coronavirus pandemic has shut down most global flights.
Hong Kong has been rocked by pro-democracy protests which have had a knock-on effect on the financial hub with local GDP falling by 2.8 per cent and 3 per cent in the last two quarters of 2019, and 8.9 per cent in the first quarter of 2020.