Thousands of activists crowded onto the streets of downtown Barcelona to defend their elected officials after Spanish police cracked down on plans for an illegal referendum on independence on October 1.
Protesters gathered outside the offices of the regional finance department as officers from Spain's Civil Guard searched the premises for evidence that officials have helped to organise the vote.
The crowd chanted that the raid was a return to the authoritarian tactics of dictator Francisco Franco and set up improvised security checks to control access to the building. Some organisers on the barrier said the plan was to prevent the police from leaving the building.
"We are here to stop the forces of Spanish repression from pushing our elected representatives around," said Jordi Adroer, a 58-year-old economist who spent all day at the demonstration. "I have been waiting all my life to gain freedom, and I am willing to wait as long as it takes."
With Prime Minister Mariano Rajoy facing Spain's biggest constitutional crisis in more than three decades, the future of Catalonia will be shaped by the power struggle between the forces of the state and the protesters on the streets.