The highest total of weekly coronavirus-related deaths have been recorded in England and Wales since March, latest figures show.
There were 571 deaths registered in the week ending on 13 August, according to the Office for National Statistics – an increase of 8% on the previous week.
This is the highest number since 719 fatalities were recorded in the week to 26 March.
About 5.5% – one in 18 – of all deaths registered in the week ending on 13 August mentioned COVID-19 on the death certificate.
During the previous week, 527 fatalities were recorded.
The UK recorded 652 coronavirus-related deaths in the week ending 13 August, an increase of 6.7% on the previous week.
England recorded 550 fatalities, while there were 41 in Scotland, 40 in Northern Ireland and 19 in Wales.
There have been a total of 156,958 deaths in the UK where COVID-19 was mentioned on the death certificate, the ONS said.
The highest number on a single day was 1,484 on 19 January, while it peaked at 1,461 during the first wave.
In England and Wales, figures show 57 care home residents died with COVID-19 mentioned on their death certificate in the week to 13 August, taking the total to 42,805.
The ONS data applies to deaths of care home residents in all settings, not just in care homes.
The number of weekly deaths from all causes in the UK was 11,793, which was 1,423 more than the five-year average.