Coronavirus live updates: WHO team to search for Covid-19 origin in China as chief says he fears 'worst to come'

UK locks down city of Leicester; wearing masks to be mandatory in Kansas; Iran reports record daily deaths. Follow the latest news

• Global report: Covid-19 deaths pass half a million
• WHO team to search for coronavirus origin in China as chief says ‘worst to come’
• Battleground states becoming Covid-19 hotspots as Trump trails Biden
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12.53am BST

Governor Andrew Cuomo of New York on Monday called on Donald Trump to “put a mask on it” and sign an executive order requiring people to wear face coverings in public. Cuomo told the president, who has consistently refused to wear a mask in public, to “lead by example” and wear one himself to stop the surge in new coronavirus cases.

“We did it two months ago in this state,” said Cuomo, adding that other states that initially resisted mask mandates were now requiring them, despite some backlash.

Related: Cuomo tells Trump to 'put a mask on it' as New York reconsiders indoor dining

12.45am BST

The British government on Monday imposed a lockdown on the city of Leicester, which has a much higher Covid-19 infection rate than anywhere else in the country, in its first major attempt to curb an outbreak with local rather than national measures.

The United Kingdom is in the process of gradually easing its national lockdown, with non-essential shops now open and further relaxation of rules due on 4 July, but Leicester and the surrounding area were told to go into reverse.