US President Donald Trump has extended emergency coronavirus restrictions for the United States where his top scientist warned up to 200,000 people could die, as Africa's biggest city readied to go into lockdown.
The reassessment by Mr Trump, who had previously said he wanted the country back to work in mid-April, came as Britain and hard-hit Italy warned measures to prevent the spread of the disease would be in place for months to come.
Covid-19 has already killed almost 34,000 people worldwide, according to a tally kept by Johns Hopkins University, with the number of confirmed cases nearing three-quarters of a million.