The number of people infected with coronavirus in the UK has risen by as much as two-thirds, the Office for National Statistics (ONS) said.
It estimates that around 100,000 people tested positive in the week to 29 May, or one in 660 people – up from 60,000 the previous week.
A growing proportion looked like they were the Delta variant, first detected in India, the ONS said.
Infections were rising most steeply in England and Wales.
A further 6,278 confirmed cases in the UK were announced by the government in official figures on Friday, with 954 people in hospital with Covid and 11 deaths recorded.
Source: Jordan News Agency