PM in intensive care as virus symptoms 'worsen'
Latest on the PM Boris Johnson.
Report
After very, very little information was shared today, the prime minister was taken into intensive care at around 19:00 BST.
We've been told he is still conscious, but his condition has worsened over the course of the afternoon.
And he has been moved to intensive care as a precaution in case he needs ventilation to get through this illness.
The statement from Downing Street makes clear he is receiving excellent care and he wants to thank all of the NHS staff.
But something important has changed, and he has felt it necessary to ask his foreign secretary to deputise for him where needs be.
That is a completely different message from what we have heard over the past 18 hours or so, where it was continually "the prime minister is in touch" and "he is in charge" - almost like everything is business as usual.
But clearly being in intensive care changes everything.
Last month, the prime minister's spokesman said if Mr Johnson was unwell and unable to work,
Mr Raab, as the first secretary of state, would stand in.
It comes as the number of coronavirus hospital deaths in the UK reached 5,373 - an increase of 439 in a day.
The Department of Health and Social Care said there were now 51,608 confirmed coronavirus cases.
Intensive care is where doctors look after the sickest patients - his admission to ICU is the clearest indication of how ill the prime minister is.
We do not know the full details of Mr Johnson's condition, but he is conscious and not being ventilated.
Not every patient in intensive care is ventilated, but around two-thirds are within 24 hours of admission with Covid-19.
This is a disease that attacks the lungs and can cause pneumonia and difficulty breathing.
This leaves the body struggling to get enough oxygen into the blood and to the body's vital organs.
There is no proven drug treatment for Covid-19, although there are many experimental candidates.
But the cornerstone of the prime minister's care will depend on getting enough oxygen into his body and supporting his other organs while his immune system fights the virus.