Spain and Greece could be added to the Government's new level of traffic light - 'amber plus'.
This follows a last-minute announcement that fully vaccinated travellers returning to England from France will continue to have to quarantine.
Last week, it was confirmed travellers returning from France will still need to quarantine for 10 days and take two tests after returning to England, despite the self-isolation and day eight test requirement being lifted on arrivals from all other amber list countries if someone is double-jabbed or under 18.
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However, there are now fears Spain and Greece could join France on the 'amber plus' list.
According to the Metro, cases in both countries are soaring due to the spread of highly contagious Covid variants.
Asked whether Spain was going to be added to the amber watchlist of travel restrictions, business minister Paul Scully said the decisions were "taken at Cabinet level".
He told Sky News: "They'll look at the data, and they'll make sure that they can work out what is best to make sure that we keep transmission of the virus low, we keep the transmission of the variants low, because it's the variants that are really key here to work out how they're interacting with our vaccine programme."
Asked whether rates being higher in Spain than in France, where those returning from the country are no longer exempt from quarantine, pointed to Spain being added to the amber list, Mr Scully said: "It's not just about... we try and give people as much data as we can but it's not just about the pure numbers.
"It's also about the variants, and the style of variants, the Beta variant, for example, that's quite prevalent in France at the moment, we're looking at how that interacts with the AstraZeneca vaccine.
"And so it's... there's a lot of factors that are involved in the decisions that are taken around travel."
