Holidaymakers and travel professionals across the UK have reacted with confusion and anger after Britain was split over quarantine measures.
Wales and Scotland added Portugal to their quarantines lists but England and Northern Ireland did not.
Along with Portugal, Wales has removed Gibraltar, French Polynesia and the Greek islands of Mykonos, Zakynthos, Lesvos, Paros and Antiparos and Crete from the list of exempt destinations.
Anyone returning to Wales from those countries after 4am on Friday (4 September) must self-isolate for 14 days. The Azores and Madeira remain exempt from Wales’s quarantine list.
Scotland had already reintroduced self-isolation measures for arrivals from Greece and has now added Portugal and French Polynesia to its quarantine list. The Scottish changes will not be implemented until 4am on Saturday (5 September).
Changes to the rules for arrivals from Greece coming to England have been considered - but Greece will stay on its safe list for now.
During his now regular Thursday afternoon update on quarantine, transport secretary Grant Shapps tweeted: “We continue to keep the Travel Corridor list under constant review & won’t hesitate to remove countries if needed. However, there are no English additions or removals today.