UK Covid live: PM gives update as vaccine certificates set to be mandatory in English nightclubs from September

Latest updates: PM gives update from isolation to announce that only fully vaccinated people will be allowed into crowded venues from September

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5.44pm BST

Back at the press conference, Boris Johnson says some important sectors are included in the list of critical workers who will be allowed to use testing as an alternative for isolation.

But he says isolation is a valuable tool. That is why he wants to carry on using it.

5.42pm BST

The US is warning its citizens not to travel to Britain, the BBC's Jon Sopel reports.

On #FreedomDay in England the US @CDCgov raises UK to highest risk level and warns Americans not to travel to Britain because of prevalence of #deltavariant pic.twitter.com/VpZCUvAhqX

There'd been speculation that travel ban for Britons travelling to the US would be lifted at G7. It wasn't.
That was replaced by speculation it will be lifted by end of summer. It won't, given latest CDC advice