The Latest: Official: Give young Britons German citizenship

LONDON (AP) - The Latest on Britain's vote to leave the 28-nation European Union (all times local):

3:45 p.m. Germany's vice chancellor says Britons living in the European Union should be given dual citizenship so they can stay when their country leaves the bloc.

Sigmar Gabriel said Saturday at a meeting of his center-left Social Democratic Party in Berlin that Britain's referendum decision to quit the EU was a further reason to campaign to relax the rules on dual citizenship in Germany.

He says "let us offer it to young Britons who live in Germany, Italy or France, so they can remain European Union citizens in this country." German law normally requires that anyone applying for citizenship has to relinquish their old citizenship.

Gabriel, who is also the economy minister, told party members that "Europe is the best place in the world for freedom, democracy and the chance of social progress."

3:15 p.m.

About 50 people have protested in front of Berlin's Brandenburg Gate against the British referendum to leave the European Union.

Participants chiefly from Britain held EU flags and home-made placards Saturday bearing such slogans as "We love EU," ''We're not leaving" and "Brown Sauce." The latter referred jokingly to a condiment much loved by Britons at home and abroad.

One demonstrator, artist Daniel Belasco Rogers, says he fears that a British exit could make him a migrant in Germany after 15 years' residency.

Belasco Rogers says he and his family might apply for German citizenship "but I'm hoping they find a loophole and this whole thing doesn't happen."

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2:55 p.m.

Pope Francis is lamenting what he calls "invisible walls" of fear that he says are dividing the European continent.

Francis is blaming these walls of "fear and aggression" on a "failure to understand people of different backgrounds or faith." He calls them "walls of political and economic selfishness."

The pope made no direct reference to Britain's recent vote to leave the European Union as he delivered his observations in a video message Saturday to a meeting of Christian movements in Munich, Germany.

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1:25 p.m.

France's prime minister says Britain's vote to leave the European Union is a business opportunity for Paris.

Prime Minister Manuel Valls says the government is working on enhancing the French capital's attractiveness, especially measures regarding taxes and expatriates' status. He spoke to the Le Parisien newspaper in an interview published Saturday.

Valls tells international companies: "Welcome in Paris! Come and invest in France!"

Due to the British vote to leave the EU, some businesses based in London are considering leaving for other cities like Dublin, Amsterdam, Frankfurt and Paris to benefit from the large EU common market.

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1 p.m.

Thousands of European Union supporters are singing, dancing and marching through the streets of London to protest the United Kingdom's vote to leave the EU.

Saturday's 2-mile (3-kilometer) "March for Europe" from Hyde Park to Parliament was organized on social media. Many of the marchers say they hope U.K. lawmakers will block any moves to leave the 28-nation bloc. Some 48 percent of voters in the June 23 referendum wanted to remain in the EU.

One organizer, comedian Mark Thomas, says British lawmakers should not work for an exit based on a result driven by anti-EU campaigners' exaggerations and distortions about immigration and EU spending.

Thomas said: "We would accept the result of the referendum if it was fought on a level playing field. But it was full of misinformation."