The advisory is perhaps the most blunt warning yet to Americans who are considering traveling to Hong Kong or mainland China.
Cases have been confirmed in the Netherlands and Belgium after Hong Kong reported a man in his 30s had been infected with SARS-CoV-2 for a second time.
The foreign ministers of the U.S., U.K., Canada, Australia and New Zealand on Sunday condemned the postponement of local elections in Hong Kong.
The multi-millionaire, 71, could face up to a life sentence over 'foreign collusion' as ITV journalist Wilson Li becomes ninth media specialist arrested.
United States Secretary of State Mike Pompeo criticized China for arresting four students in Hong Kong last week on charges of "inciting secession," which marks Beijing's implementation of new security laws aimed at curbing pro-democracy protests.
"We condemn the Hong Kong government's decision to postpone for one year its legislative council elections and to disqualify opposition candidates," White House Press Secretary Kayleigh McEnany said.
Hong Kong's Chief Executive Carrie Lam announced the September elections would be postponed a year citing the coronavirus outbreak.
Four students were arrested on Wednesday in Hong Kong under the city's new national security law, which went into effect on July 1.
On Tuesday, the Air Line Pilots Association, which represents FedEx Express pilots, issued a press release, saying that the city posed "unacceptable risks for pilots," related to the coronavirus pandemic.
As of July 28, Asia has recorded more than 3.9 million confirmed COVID-19 cases.
Hong Kong's chief secretary urged city residents to remain in their homes, avoid social contact, and refrain from dining out as much as possible.
Hong Kong Chief Executive Carrie Lam addressed the city's uptick in virus cases and clarified rumors that suggested a lockdown was imminent.
The pro-democracy leader told Newsweek that Chinese encroachment on his home gave him no choice but to take his fight abroad.
The British foreign secretary said it was "necessary and proportionate" to stop this agreement ahead of the U.S., which is expected to take similar steps.
Hong Kong Chief Executive Carrie Lam extended business closures and announced new restrictions for those already permitted to open on Sunday, as the city reported a record daily increase in COVID-19 cases.
The top Chinese and Russian diplomats spoke over the phone Friday about concerns that President Donald Trump's "America first" policy has tarnished the country's international credibility.
"The Hong Kong question is a mirror of the U.S.' extreme arrogance," The Global Times wrote in an editorial.
The Chinese reaction follows the president's signing of an executive order and new legislation after China's passage of a new national security law.
Sports in America used to be unifying, but now they seem to be yet another front of the culture war.
The House speaker was reacting to the president's executive order which brought sanctions against Beijing for imposing a security law that restricts freedoms in Hong Kong.
Trump's announcement will focus on China, as the president faces an impending deadline to sign Congress' Hong Kong sanctions bill.
Missouri Senator Josh Hawley asked whether the NBA would censor messages critical of the Chinese Communist Party.
The Five Eyes intelligence sharing group—the U.S., U.K., Canada, Australia and New Zealand—are at the forefront of the international push back against Beijing's draconian new law.
Prime Minister Justin Trudeau's government last week suspended its extradition treaty with Hong Kong and froze the export of military goods that could be used to suppress protests.
The Chinese Communist Party's ruthless aggression toward Hong Kong must be firmly resisted.
Just a day before 14 new cases were reported, the Center for Health Protection said it was investigating 17 others.
The U.K. condemned a new security law in Hong Kong and has offered visas to millions of Hong Kong citizens.
The Hong Kong government recently purchased over 6 million face masks that turned out to be fake, prompting four arrests.