Boris Johnson 'very optimistic' all restrictions will be lifted by June 21

Boris Johnson has said he is “very optimistic” that he will be able to ease all the restrictions by the June 21 date set out in his road map.Speaking at a school in south-east London, the Prime Minister told reporters: “I’m hopeful but obviously nothing can be guaranteed and it all depends on the way we continue to be prudent and continue to follow the guidance in each stage."