This is a critical moment in the fight against the virus, PM will warn as he reveals lockdown plan

Boris Johnson will warn Britain is about to move into the riskiest phase of the fight against coronavirus tonight and appeal for “maximum caution” as he unveils his road map out of lockdown.

Millions of viewers are expected to tune in to see the PM outline his exit plan.

A Downing Street source said: “This is a critical moment.

They added that having scrutinised the evidence and the data, the PM will address the public and “ask for their resolve as we continue to do whatever is needed to defeat this awful virus”.

The decisions that will be made will be the ones which “continue to save lives and protect the NHS – proceeding with maximum caution and maximum conditionality”.