Tens of thousands of demonstrators were out in force in London, Glasgow, Newcastle, Manchester, Birmingham and Cardiff, waving banners and placards in response to the 90-day ban issued by US President Donald Trump to seven largely Muslim countries.
Here are the best pictures from the #StandUpToTrump marches.
Westminster, London
Jack Taylor via Getty Images
Andrew Aitchison via Getty Images
Victoria Jones/PA Wire
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Victoria Jones/PA Wire
BEN STANSALL via Getty Images
Victoria Jones/PA Wire
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Alastair Grant/AP
Alastair Grant/AP
BEN STANSALL via Getty Images
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BEN STANSALL via Getty Images
Edinburgh, Scotland
Mark Runnacles via Getty Images
Mark Runnacles via Getty Images
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Mark Runnacles via Getty Images
Mark Runnacles via Getty Images
Mark Runnacles via Getty Images
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Bristol, England
Matt Cardy via Getty Images
Matt Cardy via Getty Images
Matt Cardy via Getty Images
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Matt Cardy via Getty Images
Cardiff, Wales
Matthew Horwood via Getty Images
Matthew Horwood via Getty Images
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Matthew Horwood via Getty Images
Matthew Horwood via Getty Images
Newcastle, England
Mary Turner via Getty Images
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Mary Turner via Getty Images
Mary Turner via Getty Images
Mary Turner via Getty Images
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