The government have removed Turkey and Poland from the travel corridor list this week, as coronavirus cases continue to rise.
Bonaire, St Eustatius and Saba have also been removed from the government 'safe' travel list.
It means that people arriving from these destinations will have to self isolate for 14 days, from 4am, Saturday 3 October.
Transport Secretary Grant Schapps tweeted the news this afternoon.
He said: "The latest data indicates we need to remove Turkey, Poland, and Bonaire, St Eustatius and Saba from the #TravelCorridor list this week.
"This means if you arrive from these destinations from 4am Saturday, October 3, you will need to self-isolate.
"You MUST self-isolate if you enter the UK from a non-exempt country - from tomorrow, we’re increasing the penalties for people who refuse to do so to a maximum of £10,000 for repeat offenders.
"If you do travel, you must complete a Passenger Locator Form before returning to the UK. Do your bit to help keep everyone safe.
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"Data from Poland shows that test positivity has nearly doubled increasing from 3.9% to 5.8% alongside a rapid increase in weekly cases, causing the Joint Biosecurity Centre to update their recommendation.
"We're also removing TURKEY from the list - the Turkish Health Ministry has been defining the number of new COVID-19 cases in a different way to the definition used by international organisations such as WHO and ECDC, so we have updated our risk assessment for the country."
