Six out of the 13 infections were imported - three from Bosnia and Herzegovina, and one each from Serbia, Croatia and Kosovo, Mario Fafangel, the head of the centre for contagious diseases at the National Institute of Public health (NIJZ), told the press on Tuesday.

Five other cases were related to the imported ones, one is still being investigated, and in one case the source of infection is not known.

Fafangel stressed that Slovenia's epidemiological situation, with 14 cases confirmed this week, was still good compared to those in other EU countries. He assured the public that the imported infections were under control.

If the number of infections starts rising rapidly, various measures will be proposed, he said.

Slovenia had 25 new infections confirmed between 15 and 21 June, of which eleven were imported and ten were related to those cases. Nobody got infected in their local environment in the country.

Five Covid-19 patients were is hospital yesterday, one in intensive care. One person was discharged from hospital and no new deaths were reported, the government said on Twitter.

So far, 94,165 tests have been conducted and 1,534 infections confirmed. A total of 109 people have died of the disease, the last one on 1 June.

Fafangel said today the surge in the number of new cases was not the second wave of the epidemic but oscillation. With the curve flattening, the situation seemed very promising, but now the figures are being kept at a stable level.

"All countries are trying to keep the situation under control at the global level, because it is not enough if only one country is taking measures," the NIJZ official said.

Government spokesman Jelko Kacin said the government would discuss potential new measures tomorrow. Moreover, Interior Minister Aleš Hojs said that Albania and Portugal would be placed on the list of unsafe countries.

He also indicated in a statement for the A Kanal TV station that Slovenia might re-introduce the obligatory wearing of protective face masks. He also regretted that people failed to adhere to the instructions of NIJZ, which recommends people wear masks indoors when they cannot keep a safety distance of 1.5 metres.

New infections were confirmed in nine Slovenian municipalities on Monday. Mostly one case was recorded in each municipality, except in Pivka were two cases were recorded, which Kacin linked to a party.

Fafangel said the number of hospitalised persons remains low because the demographic structure of those infected was different than during the epidemic. While back then, the patients were mostly elderly, now they are active people who travel.