Boris Johnson will give a press conference tonight on the expected delay to lockdown easing.

The Prime Minister is expected to announce the ending of social-distancing rules – which had been slated for June 21 – will be delayed for four weeks to July 19, with the BBC reporting early on Monday the decision had been signed off by senior ministers.

The press conference will take place at 6pm.

We will be live blogging the details on our site.

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The move follows warnings from scientists that the rapid spread of the Delta variant first identified in India risks a “substantial” third wave if it is allowed to spread unchecked.

Mr Johnson is expected to appeal to the public to show patience, with one last push to ensure that when controls do finally end it is “irreversible”.

However, it comes as a huge setback to many businesses – particularly in the battered hospitality sector – which had pinned their hopes on a full summer reopening to recoup some of the losses of the past year.

There was deep frustration among lockdown sceptics on the Conservative benches who said there was no reason not to end the restrictions as those most at risk of death or serious illness are now fully vaccinated.

Former minister Mark Harper, the chairman of the Covid Recovery Group (CRG) of Tory MPs, said any postponement would be a “political choice”.