Demonstrators hold an EU flag outside the Houses of Parliament in London, Britain, on June 10, 2020. Britain will not extend its transitional links to the European Union (EU) beyond Dec. 31, a government minister said Tuesday following the stalled talks between London and Brussels last week. (Photo by Tim Ireland/Xinhua)

People walk past a banner demanding extension of Brexit transition period outside the Houses of Parliament in London, Britain, on June 10, 2020. Britain will not extend its transitional links to the European Union (EU) beyond Dec. 31, a government minister said Tuesday following the stalled talks between London and Brussels last week. (Photo by Tim Ireland/Xinhua)

A pigeon is seen near placards demanding extension of Brexit transition period outside the Houses of Parliament in London, Britain, on June 10, 2020. Britain will not extend its transitional links to the European Union (EU) beyond Dec. 31, a government minister said Tuesday following the stalled talks between London and Brussels last week. (Photo by Tim Ireland/Xinhua)

A demonstrator holds placards demanding extension of Brexit transition period outside the Houses of Parliament in London, Britain, on June 10, 2020. Britain will not extend its transitional links to the European Union (EU) beyond Dec. 31, a government minister said Tuesday following the stalled talks between London and Brussels last week. (Photo by Tim Ireland/Xinhua)