Prime Minister Boris Johnson has urged caution as most legal restrictions on social contact are lifted in England.

There are now no limits on how many people can meet or attend events, nightclubs reopened at midnight, and table service will not be necessary in pubs and restaurants.

Face coverings will be recommended in some spaces, but not required by law.

The PM, chancellor and the health secretary are self-isolating, and there are warnings cases will surge.

Some scientists are predicting that UK infections - currently at about 50,000 a day - could reach 200,000 a day later in the summer.

But with more than 68% of UK adults fully vaccinated modelling suggests hospital admissions, serious illness and deaths from Covid-19 will be at a lower level than in earlier peaks.

In a video posted on Twitter on Sunday afternoon, the prime minister said now was the "right moment" to move to the final stage of England's roadmap out of lockdown.

"If we don't do it now we've got to ask ourselves, when will we ever do it?" he asked, adding that the virus would have the "advantage of the cold weather" in autumn and winter.

"But we've got to do it cautiously. We've got to remember that this virus is sadly still out there. Cases are rising, we can see the extreme contagiousness of the Delta variant."

Labour's shadow health secretary Jonathan Ashworth said ending legal mask requirements and the recommendation to work from home was "reckless" and warned of a "day of chaos" on the transport network as people returned to offices after months away.

"The last thing we want on a day like this is chaos and for the public health measures to be undermined," he told BBC Radio 4's Today programme.

As restrictions ease in England, businesses such as nightclubs - and large events - will be encouraged to use the NHS Covid Pass to check people are fully vaccinated, have natural immunity from infection or have a recent negative test. 

At Fibre in Leeds, these checks were not being used. While some clubgoers said they were a little nervous, most were overjoyed to return to the dance floor.

"It's been literally the best night of our lives. We've been waiting for this since we turned 18. This has been like life has come back to normal all of a sudden," said Mollie, 20.

Mark, an estate agent, said he had previously had Covid and was now fully vaccinated. "I want my life back," he said.