Italy is requiring coronavirus tests for people arriving from Croatia, Malta, Spain and Greece after a spate of new infections were registered in Italians returning home from vacation.

A health ministry ordinance approved Wednesday says travellers arriving from those four countries must show proof of a negative test in the past 72 hours, submit to a test upon arrival or go to the local Italian health service to be tested within two days.

The ordinance also adds Colombia to Italy’s blacklist: Visitors who have been to Colombia in the past 14 days are barred outright, as are visitors from around a dozen other countries.

Italy was the onetime epicentre of the European outbreak and is still seeing between 300-500 new cases a day.

Malta has seen a surge in Coronavirus cases in the past three weeks. There are now 486 active cases.