The government announced 23,254 confirmed cases of Covid-19 on Sunday.
There were also 162 further deaths. Of those deaths, 132 were in England, 16 in Wales, eight in Northern Ireland and six in Scotland.
Coronavirus cases are rising quickly across large parts of England, with other spikes in areas of Scotland, Wales and Northern Ireland.
On Friday, the government said its estimate for the R number across the whole of the UK was 1.1-1.3.