The prime minister’s most senior adviser is reported to have been spoken to by police after he travelled to Durham in March.
A joint investigation by The Guardian and the Daily Mirror claims Dominic Cummings was approached by Durham Constabulary on 31 March after travelling to the city, which is more than 200 miles from his London home.
A Number 10 spokesperson had confirmed on 30 March that Mr Cummings was self-isolating after suffering symptoms of coronavirus.
At the time, government advice was that people should stay at home and not travel to second homes.
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