There are concerns that the Schengen open market could be disrupted by the introduction of de facto land borders without coordinated action by the 27 members of the bloc.
Italy said Tuesday that from December 16, all travelers from EU countries will have to present a negative test on arrival, even if they are vaccinated.
Portugal, Ireland and Greece have also introduced negative testing requirements for anyone entering their country.
Luxembourg Prime Minister Xavier Bettel has warned that new internal restrictions would undermine the vaccination campaign.
“If you don’t make a distinction between vaccinated and unvaccinated people because they need a PCR test, I think that’s the wrong idea,” he said. “It’s not a position I’m going to defend. It’s a national decision, but for me it’s a common problem. “
The summit conclusions agreed by the EU heads of state and government stated that all restrictions should be coordinated and “not disproportionately hinder free movement between member states”.