In an interview this morning, Boris Johnson said that the Test and Trace Support Payment was £500 per week, when it is actually a one-off lump sum.

The payment to those on low incomes in England who have to self-isolate - and lose income as a result - came into force a week ago.

The prime minister said that anybody contacted by the government’s test-and-trace system and told to self-isolate should do so, and that there would be “£500 if you do per week and a £10,000 fine if you don’t”.

The prime minister’s official spokesperson has confirmed: “It’s a one-off payment of £500."