Nicola Sturgeon has refused to rule out shutting the Scottish border to prevent people using a loophole to avoid strict quarantine rules.
Scotland has imposed stricter restrictions on international travel, forcing all arrivals to pay £1,750 to quarantine in hotels for 10 days from Monday.
In England, only those who are coming back from 33 "red list" countries such as Portugal and South Africa, must undergo a 10-day hotel stint.
The discrepancy sparked fears that some Scots could exploit the loophole by flying into England and then travelling north of the border by car or public transport.
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