Portugal's foreign affairs minister has said his country's exclusion from a list of countries for which quarantine will not apply for people returning to England is "absurd".
Augusto Santos Silva told the BBC not including Portugal was "senseless and unfair".
The list of countries exempt from quarantine was published on Friday.
Boris Johnson said 14-day quarantines would remain for countries where the virus was not under control.
Other countries excluded from the list, which comes into effect on 10 July, include the US, China, the Maldives and Sweden.
Mr Santos Silva told BBC Radio 4's PM programme: "We are very disappointed with the decision of the British authorities. We think it is senseless and unfair.
"It is quite absurd the UK has seven times more cases of Covid-19 than Portugal so we think this is not the way in which allies and friends are treated."
The Portuguese Prime Minister, António Costa, tweeted comparing the UK's number of coronavirus cases with that of the Algarve, say