Scrambling to save its tourism sector, Portugal has said it would allow US visitors into the country but added Nepal to a list of "red" nations amid worries about new coronavirus variants.

Portugal is now open to tourists from European Union countries and Britain but they must show a negative Covid-19 test result on arrival. Since June 15, rules applied to UK visitors also apply to those coming from the United States, the government said.

Travellers from Japan, Australia, South Korea, China, Israel, New Zealand, Rwanda, Singapore and Thailand will also be able to travel to Portugal as long as their governments adopt equivalent reciprocal measures.

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