As it happened: Coronavirus pandemic: UK PM blames 'colossal spike' for testing issues - BBC News
Boris Johnson defends the UK's testing system as people struggle to get tests and results are delayed.
England's education secretary has defended the Covid-19 testing system for schools.

Gavin Williamson insisted schools were being prioritised, highlighting that they can now order tests from the NHS directly.

Earlier, unions and head teachers warned Prime Minister Boris Johnson of their "deep sense of foreboding" about further delays in the testing system, which has seen many teachers and pupils unable to access a Covid-19 test since the new school year began

Mr Williamson told the education select committee direct access to the test-kit ordering system for schools came into effect on Wednesday morning, two weeks after the start of term.

He described the direct supply line for schools as "unique".

He said he had met Baroness Dido Harding, who runs NHS Test and Trace in England, to emphasise the importance and priority of schools and ensure testing is always available to them.

But he cautioned that only people with coronavirus symptoms should be tested, not the whole "cohort" who are sent home.

General Secretary of the NASUWT teaching union, Dr Patrick Roach, said "schools are unable to cope with a situation that is becoming increasingly out of control".