Standing alongside Mr Johnson, England's chief medical officer, Professor Chris Whitty, warned that it might not be possible to ease lockdown further, saying the United Kingdom has "probably reached near the limit or the limits" of what can be done to reopen society.
The ONS also estimate that there are now 4,900 new infections every day up from around 3,000 per day on the 14th of July and 2,000 per day at the end of June.
Addressing the nation from Downing Street today (Friday), Boris Johnson announced casinos, bowling alleys, ice rinks, indoor performances and other close contact services will have to remain closed until August 15 at the earliest.
The prime minister said a rule requiring face coverings to be worn in shops and on public transit will be extended to museums, galleries, cinemas and places of worship beginning on August 8. "Our assessment is that we should now squeeze that brake pedal in order to keep the virus under control", Johnson said in a televised press conference.More news: Collin County reports one death, 101 new COVID-19 cases
"We can't afford to ignore this evidence", he said.
He said the measures will be reviewed after two weeks.
The new rules, which came into effect from midnight, also ban members of two different households from mixing in pubs, restaurants and other hospitality venues, but these businesses will remain open for those visiting individually or from the same household.
Health Secretary Matt Hancock also announced in a tweet on Thursday that the government planned to increase lockdown measures in parts of northern England, including Blackburn, Burnley, Hyndburn, Pendle and Rossendale.More news: Bryan Cranston Reveals He Recovered from Coronavirus: ‘Keep Wearing the Damn Mask’
Mark Francois, the chairman of the European Research Group of Conservative MPs, said: "The Government's got to stop sending contradictory signals".
Labour Party business spokeswoman Lucy Powell said the "bolt out of the blue" approach was "not the way to build confidence and to take people with you and maximize compliance with these steps".
PA news agency understands that the pausing of shielding advice includes areas in the north west of England and Yorkshire where new restrictions were imposed on Thursday evening.
The affected region has a large Muslim population, and the restrictions coincide with the Eid al-Adha holiday, where many people would normally gather in each other's homes.More news: Epstein's ex-girlfriend tries late bid to seal testimony
As the world grapples with a possible second wave, Johnson said the virus was gathering pace in Asia and Latin America while continental Europe was struggling to keep it under control.