As the UK parliament debated Boris Johnson's withdrawal deal during a highly unusual Saturday sitting in the House of Common, protesters gathered to request a People's Vote, or second referendum, in London, following a similar event which was held in March.
A contingent of Brits led by Bremain in Spain travelled to the UK especially for the demonstration, which organisers said attracted around one million people. Further concentrations were organised closer to home in La Línea and Nerja for anti-Brexit supporters who were unable to get to the UK.
British residents in Spain and Spaniards living in the UK remain uncertain about their future rights as the Brexit debate continues.
Rumours of a general election intensify as parties are unable to agree a timetable for the UK's departure, which had been set for 31 October.