Boris Johnson has said he is “very optimistic” that he will be able to fully remove all of England’s coronavirus restrictions on June 21 but warned “nothing can be guaranteed”.

The Prime Minister urged the nation to be “prudent” by continuing to follow the rules after publishing his road map to gradually lift the third national lockdown over the coming months.

Facing criticism from some Tory MPs over the pace of change, Mr Johnson said he was “hopeful” that all legal controls can be removed on the final date earmarked in his four-step plan.

Mr Johnson also announced that senior minister Michael Gove will lead a review into the possible use of vaccine passports to access currently closed venues, such as pubs and theatres.