British Prime Minister Boris Johnson's closest adviser travelled more than 400 kilometres from his London home after showing symptoms of coronavirus, breaking the government's lockdown rules, the UK's Guardian and Mirror newspapers reported on Friday.
"Owing to his wife being infected with suspected coronavirus and the high likelihood that he would himself become unwell, it was essential for Dominic Cummings to ensure his young child could be properly cared for", a Downing Street spokesman said.
The government has ordered anyone with coronavirus symptoms to self-isolate at home and not leave - even for essential supplies - for seven days.
According to a joint investigation by the Daily Mirror and the Guardian, at the same time as the UK Government was instructing people to remain home - with fines in place for those contravening the rules - Mr Cummings chose to escape the capital.
A spokesman said: "On Tuesday, March 31, our officers were made aware of reports that an individual had travelled from London to Durham and was present at an address in the city".
SNP Westminster leader Ian Blackford said the Prime Minister should come clean on what he knew about Dominic Cummings’ travels
Downing Street said Mr Cummings believed he "behaved reasonably and legally" when he made the 260-mile journey from his London home to Country Durham during the lockdown.
"Officers made contact with the owners of that address who confirmed that the individual in question was present and was self-isolating in part of the house", the force said in a statement.
His actions were in line with coronavirus guidelines.
In a speech on 18 March, the Prime Minister said that "children should not be left with older grandparents, or older relatives, who may be particularly vulnerable or fall into some of the vulnerable groups".
Downing Street has made no official comment on the matter.More news: Premier League confident about June restart
Police did not mention Cummings by name.
"I felt breathless, sometimes achy, but Dom couldn't get out of bed", she said.
"If he doesn't think Dominic Cummings has flouted the rules, when there seems to be such an obvious case to answer, then he needs to explain that to maintain the integrity of his position". He returned to the office on April 14.
Scotland's chief medical officer, Catherine Calderwood, resigned in April after breaking her own rules to visit her second home twice.
Several figures in Westminster have already called for Mr Cummings's resignation.More news: Cases of corona increases in America
Ed Davey, acting leader of the Liberal Democrats, said that if Cummings had broken the rules, "he will have to resign". "It's as simple as that".
Opposition parties have called for the prime minister to sack his chief adviser over the apparent lockdown breach, which was revealed in an investigation by the Guardian and the Mirror.
Blackford said Cummings' alleged actions were "more serious breaches" than rule breaking carried out by United Kingdom government adviser Professor Neil Ferguson and former Scotland chief medical officer Catherine Calderwood, both of whom resigned for their breaches. "The federal government's assistance was really clear: remain at residence as well as no non-essential traveling".
"It can not be one rule for those who set them and another for the British people". Cummings exclusively confirmed to Palatinate last July that his role was to take money on the door.
Cummings is considered a key member of the 2016 pro-Brexit campaign and the man responsible for helping Johnson become prime minister previous year.More news: Human trials of British coronavirus vaccine to widen to 10000