A cabinet minister is self-isolating while awaiting the results of a coronavirus test.
The minister, who the BBC is not naming, was tested on Thursday after coming into contact with health minister Nadine Dorries at a recent Downing Street reception.
Ms Dorries has tested positive for the virus and is self-isolating at home.
It comes after the UK saw its biggest daily rise yet on Thursday – up to 460 cases with eight deaths.
Self-isolating is the advice currently being given to people who have recently returned from affected countries or have been in close contact with a person who has tested positive for the virus.
It means staying at home, not going to work, school or other public places, and avoiding public transport or taxis, in an attempt to avoid spreading the virus.