European Commission

Sanna Marin, Finland's Prime Minister, will immediately leave the EU summit in Brussels, return to Helsinki to take a Covid-19 test and self-isolate.

Marin came into contact with Tom Packalenin, who has since tested positive for Covid-19, in the Finnish parliament.

The Swedish Prime Minister Stefan Lofven will represent Marin for the rest of the summit.

On Thursday, European Commission President Ursula von der Leyen left the summit after a member of her team tested positive, entering voluntary self-isolation "as a precaution".

The President of the European Commission, Ursula von der Leyen, left a summit of EU leaders after an aide tested positive for Covid-19. The President is self-isolating as a precautionary measure.

In a post on Twitter, von der Leyen wrote: "I have just been informed that a member of my front office has tested positive to COVID-19 this morning. I myself have tested negative.

However as a precaution I am immediately leaving the European Council to go into self-isolation."