President Donald Trump’s travel ban on 26 European nations has come into force in the US, as part of a contingency plan to tackle the coronavirus crisis.
The ban applies to non-Americans who have been in the Schengen border-free travel area within 14 days of travelling to the US.
People travelling from the UK and the Republic of Ireland are exempt, as are returning US citizens.
There are nearly 2,000 confirmed cases of Covid-19 in the US, and 43 deaths.
Mr Trump also declared a national emergency, freeing up to $50bn (£40bn) in relief funds.
Mr Trump’s administration has faced criticism for its failure to provide Americans with widespread coronavirus testing.
In other developments on Saturday:
Separately, Washington on Friday summoned the Chinese ambassador to protest at comments by a Chinese diplomat that the US military might have brought the virus to China.
The coronavirus originated in China’s Hubei province late last year.
But the daily rates of new infections have been slowing in China, making Europe the new “epicentre” of the pandemic.