New data shows that some areas of England with the highest rates of coronavirus infection are within just 50 miles of the Scottish border.
Meanwhile official figures reveal over ten thousand cars crossed into Scotland from England in just one day last month.
The news comes amid fears the R-number is creeping up in parts of Northern England, even as the government loosens lockdown restrictions there further.
The Government data, updated yesterday, show that four of the seven areas with the highest rates of infection in England are within 50 miles of the Scottish border.
While Scotland keeps stricter lockdown rules in place, England is set to allow people from different households to meet indoors from tomorrow (Saturday June 12).
In Scotland a max of eight people from two different households are allowed to meet outdoors. Nicola Sturgeon also urged people not to travel more than five miles - which would rule out longer car journeys.
Meanwhile a rule remains in place banning people who live in England from travel into Wales, Scotland or Northern Ireland ‘for recreation’.
But this doesn’t seem to have stopped thousands of cars crossing the border from northern England - where the coronavirus R number is thought to be creeping up.
Official figures showed a total of 11,500 cars crossed into Scotland on May 29 after some lockdown restrictions were relaxed, reports The National.
While those arriving in Scotland by air must self-isolate for two weeks or face a fine, drivers are able to travel freely across the UK despite increasingly different restrictions in each of the four nations.
Phase two of Scotland's route map out of lockdown, which could come into effect on June 18, will see some easing of travel restrictions for Scots but government guidance says even then Scots will only be "permitted to drive locally for leisure purposes."
Not until phase three does the guidance say people in Scotland will be allowed to drive "beyond the local area for leisure and exercise purposes".