EU supporters march in London, denouncing Brexit vote

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

Saturday's three-kilometre-long "March for Europe" from Hyde Park to parliament was organized on social media.

Many of the marchers say they expect legislators to block any moves to leave the 28-nation bloc, an option backed by 52 per cent of voters in the June 23 referendum.

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

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

Demonstrators headed toward the Westminster political district to a soundtrack of songs including Rick Astley's Never Gonna Give You Up and Whitney Houston's I Will always Love You.

Cries of "shame on you" rang out as the march halted briefly outside the Downing Street office of Prime Minister David 
Cameron, who had himself announced the referendum in 2013.

The Queen appeared to weigh in on recent events in the U.K. during a speech Saturday at the opening of a new session of the Scottish parliament.

"We all live and work in an increasingly complex and demanding world where events and developments can, and do, take place at remarkable speed and retaining the ability to stay calm and collected can at times be hard," she said.

The Queen stressed the need for political leaders to make "room for quiet thinking and contemplation" to deal with developments in a "fast-moving world."