Demonstrations I in Catalonia entered their third day in a row, reaffirming their demands for independence from Spain, leading to clashes with police.
In Barcelona, riot police fired tear gas and dispersed a crowd of demonstrators trying to reach government buildings. Police arrested three people. Local media reported that nine people received medical treatment after being injured.
Pro-independence leaders in control of the Catalan regional government say they will continue to press for a new referendum on secession of Catalonia from Spain.
The protests began after the Spanish Supreme Court sentenced nine pro-independence leaders to nine to 13 years in prison on Monday.
The court convicted the nine separatist leaders of sedition for their role in the 2017 independence referendum, which Spain said was illegal.
Three others were found guilty of disobedience and were only fined by the court. All 12 defendants in the case denied the charges against them.
On 27 October 2017, the Catalan Parliament declared independence from Spain following a disputed referendum.