The Prime Minister is under renewed pressure to sack his closest aide after eyewitness reports called into question both Dominic Cummings' and Downing Street's account of his lockdown whereabouts.
Boris Johnson had offered his "full support" to his under-fire chief adviser after it emerged Mr Cummings had travelled 260 miles to Country Durham despite strict restrictions at the time not to journey long distances.
Mr Cummings, in a statement issued through Number 10, said he travelled to be close to family to seek help looking after his four-year-old child after his wife became ill with coronavirus symptoms.
But fresh claims, according to reports in the Sunday Mirror and the Observer, suggest the 48-year-old made a second trip to Durham,