The UK is "now seeing a second wave" of Covid-19, Prime Minister Boris Johnson has said, adding "it's been inevitable we'd see it in this country".
Mr Johnson also said he did not "want to go into bigger lockdown measures", but that tighter social distancing rules may be necessary.
It comes as new restrictions were confirmed for Merseyside, parts of the Midlands and West Yorkshire.
On Friday, the UK recorded a further 4,322 confirmed cases of coronavirus.
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