Mr Johnson said some primary school pupils could go back to school on June 1, providing the R number is kept below one and the UK does not suffer a second peak of infections. Elsewhere, the hospitality industry could begin to reopen in July.
People who can’t work from home should go to work, the PM said.
Read the key updates below.
Coronavirus LIVE: Here are the key changes as Boris Johnson announces first steps for lifting lockdown
Last updated: Sunday, 10 May, 2020, 19:52
- Unlimited exercise encouraged from Wednesday. Outdoor sports within households and sunbathing allowed.
- PM says people will also be allowed to drive to outdoor destinations.
- Primary schools could reopen on June 1 and some shops could reopen. Hospitality sector could reopen in July.
- Total number of confirmed deaths in hospitals in England is 23,149 as of Sunday.
More details emerging
What is the Covid Alert System?
The PM said a new Covid Alert System is being set up determined mainly by the reinfection rate and the number of cases.
The alert levels will be one to five and the higher the level, the tougher social distancing measures will have to be. The PM said the UK had been in Level Four but "we are now in a position to begin to move in steps to Level Three".
Expect more details on this tomorrow…
More details to come tomorrow
For anyone confused about what the new measures mean in practice, the Prime Minister said he will be setting out more details in Parliament tomorrow and taking questions from the public in the evening.
Unlimited exercise, sunbathing and outdoor sports - what you need to know
From Wednesday people will be encouraged to take more and even unlimited amounts of outdoor exercise.
“You can sit in the sun in your local park, you can drive to other destinations, you can even play sports but only with members of your own household.” - Boris Johnson
Social distancing must still be observed, however.
Steps two and three - schools, shops and the hospitality sector
Here's a reminder of what the Prime Minister said about the next steps.
"Every day, with ever increasing data, we will be monitoring the R and the number of new infections, and the progress we are making, and if we as a nation begin to fulfil the conditions I have set out, then in the next few weeks and months we may be able to go further."
"In step two - at the earliest by June 1 - after half term - we believe we may be in a position to begin the phased reopening of shops and to get primary pupils back into schools, in stages, beginning with reception, Year 1 and Year 6.
"Our ambition is that secondary pupils facing exams next year will get at least some time with their teachers before the holidays. And we will shortly be setting out detailed guidance on how to make it work in schools and shops and on transport.
"And step three - at the earliest by July - and subject to all these conditions and further scientific advice; if and only if the numbers support it, we will hope to re-open at least some of the hospitality industry and other public places, provided they are safe and enforce social distancing."
Government establishing a new Covid Alert System run by a new Joint Biosecurity Centre
Unlimited exercise to be encouraged in England from Wednesday. Outdoor sports will be allowed, but only within households.
PM said: “You can sit in the sun in your local park, you can drive to other destinations, you can even play sports but only with members of your own household.”
Avoid public transport, but go to work if you cannot work from home, Mr Johnson said. This is particularly aimed at those working in the construction and manufacturing sectors.
Go to work by car, bike or on foot, PM said.
Lockdown not over yet - ‘We are taking first careful steps’.
Fines will be increased to encourage people to follow rules of lockdown.
By June 1, phased reopening of shops may begin and primary pupils could begin to go back to schools. This is based on how well the UK contains the R number.
Hospitality industry and other public places could reopen by July, PM said.
“We will be driven by science, the data and the public.”
PM serving notice it will soon be time to impose quarantine on people coming into the UK by air.
“If there are problems we will not hesitate to put on the brakes […] it is coming down the mountain that is often more dangerous.”
Devolved leaders reject Boris Johnson's new 'stay aware' slogan
Leaders of all the devolved nations have rejected Boris Johnson's new "stay alert" advice in favour of keeping the "stay at home" message in the fight against coronavirus amid criticism the new slogan is unclear.
After a Cobra meeting with the PM and devolved leaders, Scotland's First Minister Nicola Sturgeon told the Westminster Government not to deploy the stay alert message north of the border, warning the "vague and imprecise" slogan could be "catastrophic".
Let us know what you think of the new slogan
Is the slogan clear enough? Should critics get off the Government's back, or has their response been as bad as some say?
Let us know what you think of the new slogan
Is the slogan clear enough? Should critics get off the Government's back, or has their response been as bad as some say? Let us know what you think.
Government explains what 'stay alert’ coronavirus slogan means after ditching ‘stay home’
Communities Secretary Robert Jenrick said a "broader" slogan was needed as the Government tries to restart the economy.
"I think that's what the public want and that they will be able to understand this message, which is that we should be staying home as much as possible but when we do go to work and go about our business we need to remain vigilant, we need to stay alert."
It follows criticism of the change from the ‘Stay at Home’ message.