Sweden was initially one of several countries that were excluded from entering Greece, when the country announced its first stage of border reopening on Friday.

However, on Saturday, Greece updated and expanded its guidelines on which travellers will be allowed into the country from June 15th.

Now visitors from countries that have been severely affected by the coronavirus will be allowed into Greece.

It will decided on which airport you arrive from, not which country you come from, a Greek government spokesman told AFP news agency. Those flying in from the worst affected regions will be forced to quarantine upon arrival. 

According to a document from the Ministry of Foreign Affairs, Greece will refer to the European Aviation Safety Authority list of airports with a high risk of contamination. The Stockholm region is currently included in this list, along with regions in Italy, the Netherlands, Spain and the U.K. and the whole of Belgium. No airports in any of the other Scandinavian countries are included in the list.

If travelling from an airport that is not on the list, only random testing will be conducted at the airport in Greece.

If arriving from a listed high-risk airport, the passenger will be tested for the coronavirus on arrival. If it's negative, the passenger has to self-quarantine for seven days. If it's positive, the passenger must quarantine under supervision for 14 days, according to the document from the Ministry of Foreign Affairs.

Between June 15 and June 30, only flights to the international airports of the capital Athens and Thessaloniki are allowed. Other regional airports open on July 1.  Any updates or changes to listed airports will only occur if EASA's list is updated, a Greek government spokesman told AFP.