"I still feel that the United Kingdom's exit is a catastrophe. We would like them to stay. And if they want the same, they should be allowed to do so," Juncker said, addressing the European Parliament in Strasbourg.
According to Juncker, in the event London leaves in accordance with the Article 50 of the Lisbon Treaty, Article 49 should allow the country to rejoin in the future.
The decision to leave the bloc has been repeatedly criticized by Scottish politicians, who claim that the outcome of the vote neglected Edinburgh's desire to stay in the European Union. At the same time, the border between the Republic of Ireland and Northern Ireland also remains an obstacle on the agenda of the Brexit talks, as London's pullout might create difficulties for the free movement of goods and workers between Ireland and the Northern Irish counties of the United Kingdom.