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Spain: Pro-secession protesters block roads in Catalonia

Published
Demonstrators march along the street, during a protest in Barcelona, Spain, Thursday, Feb. 21, 2019. Protesters backing Catalonia's secession from Spain clashed with police and blocked major roads and train tracks across the northeastern region on Thursday during a strike called to protest the trial of a dozen separatist leaders. (AP Photo/Manu Fernandez)

BARCELONA, Spain (AP) — Protesters backing Catalonia's secession from Spain clashed with police and blocked roads across the northeastern region Thursday during a student and worker strike over the trial of a dozen separatist leaders.

Regional police said four people were arrested when officers met resistance while trying to clear groups of protesters who had stopped traffic. The regional emergency service said 37 people were treated for minor injuries.

Twelve officers were also injured in the clashes, according to police. Protesters threw rocks at police lines and burned tires on some highways.

Regional transportation authorities said the protests disrupted traffic on main thoroughfares in Barcelona and affected travel on a half-dozen major highways and train lines elsewhere in Catalonia.

The general strike was organized by small unions of pro-independence workers and students. On paper, they were demanding improved social policies, including a 35-hour work week and a higher minimum wage.

However, the protesters carried pro-secession flags and chanted slogans for the release of the 12 separatists who are on trial in Spain's Madrid-based Supreme Court for their roles in a 2017 independence declaration.

The major labor unions in Catalonia did not back Thursday's strike, which appeared to have a limited impact on businesses.

In Barcelona, the region's capital, students in favor of secession held a mid-day march attended by 13,000 people, according to city police.

Tens of thousands more joined an evening march behind a banner that read "Self-determination is not a crime." A grassroots pro-secession group, ANC, organized the march.

The Spanish government says regions cannot independently secede, according to the Constitution.

The 12 Catalan separatists are charged with sedition and other alleged crimes for their roles in Catalonia's failed 2017 secession attempt. Three were scheduled to testify in court on Thursday.

Their trial is in its second week and is expected to last three months.

Election results and polls indicate that Catalonia's 7.5 million residents are divided down the middle over the secession issue.

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AP journalist Aritz Parra contributed to this report from Madrid.

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More AP coverage of Catalonia at https://apnews.com/Catalonia

Demonstrators march along the street, during a protest in Barcelona, Spain, Thursday, Feb. 21, 2019. Protesters backing Catalonia's secession from Spain clashed with police and blocked major roads and train tracks across the northeastern region on Thursday during a strike called to protest the trial of a dozen separatist leaders. (AP Photo/Manu Fernandez)
Demonstrators block a train rail at the subway, during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. Protesters backing Catalonia's secession from Spain clashed with police and blocked major roads and train tracks across the northeastern region on Thursday during a strike called to protest the trial of a dozen separatist leaders. (AP Photo/Emilio Morenatti)
Catalan police officers clash with demonstrators outside a subway after blocking a train rail, during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. Protesters backing Catalonia's secession from Spain clashed with police and blocked major roads and train tracks across the northeastern region on Thursday during a strike called to protest the trial of a dozen separatist leaders. (AP Photo/Emilio Morenatti)
A man eats inside a coffeeshop with a glass painted with a graffiti reading in Catalan:
Catalan police officers remove demonstrators blocking a road leading to Barcelona city, during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. Strikers advocating for Catalonia's secession from Spain are blocking major highways, train lines and roads across the northeastern region. (AP Photo/Emilio Morenatti)
Police officers try to remove burning tires, set by demonstrators to block a highway in protest of the imprisonment of pro-independence political leaders during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. (AP Photo/Daniel Cole)
Catalan police officers remove a demonstrator blocking a road leading to Barcelona city, during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. Strikers advocating for Catalonia's secession from Spain are blocking major highways, train lines and roads across the northeastern region. (AP Photo/Emilio Morenatti)
Demonstrators block a train rail at the subway, during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. Protesters backing Catalonia's secession from Spain clashed with police and blocked major roads and train tracks across the northeastern region on Thursday during a strike called to protest the trial of a dozen separatist leaders. (AP Photo/Emilio Morenatti)
Demonstrators block a train rail at the subway, during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. Protesters backing Catalonia's secession from Spain clashed with police and blocked major roads and train tracks across the northeastern region on Thursday during a strike called to protest the trial of a dozen separatist leaders. (AP Photo/Emilio Morenatti)
Demonstrators march along the street, during a protest in Barcelona, Spain, Thursday, Feb. 21, 2019. Protesters backing Catalonia's secession from Spain clashed with police and blocked major roads and train tracks across the northeastern region on Thursday during a strike called to protest the trial of a dozen separatist leaders. (AP Photo/Manu Fernandez)
Demonstrators march along the street, during a protest in Barcelona, Spain, Thursday, Feb. 21, 2019. Protesters backing Catalonia's secession from Spain clashed with police and blocked major roads and train tracks across the northeastern region on Thursday during a strike called to protest the trial of a dozen separatist leaders. (AP Photo/Manu Fernandez)
Police officers try to remove burning tires, set by demonstrators to block a highway in protest of the imprisonment of pro-independence political leaders during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. (AP Photo/Daniel Cole)
Police officers try to remove burning tires, set by demonstrators to block a highway in protest of the imprisonment of pro-independence political leaders during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. (AP Photo/Daniel Cole)
Catalan police officers clash with demonstrators outside a subway after blocking a train rail, during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. Protesters backing Catalonia's secession from Spain clashed with police and blocked major roads and train tracks across the northeastern region on Thursday during a strike called to protest the trial of a dozen separatist leaders. (AP Photo/Emilio Morenatti)
Catalan police officers clash with demonstrators outside a subway after blocking a train rail, during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. Protesters backing Catalonia's secession from Spain clashed with police and blocked major roads and train tracks across the northeastern region on Thursday during a strike called to protest the trial of a dozen separatist leaders. (AP Photo/Emilio Morenatti)
Catalan police officers remove demonstrators blocking a road leading to Barcelona city, during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. Strikers advocating for Catalonia's secession from Spain are blocking major highways, train lines and roads across the northeastern region. (AP Photo/Emilio Morenatti)
Catalan police officers remove demonstrators blocking a road leading to Barcelona city, during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. Strikers advocating for Catalonia's secession from Spain are blocking major highways, train lines and roads across the northeastern region. (AP Photo/Emilio Morenatti)
Demonstrators march along the street, during a protest in Barcelona, Spain, Thursday, Feb. 21, 2019. Protesters backing Catalonia's secession from Spain clashed with police and blocked major roads and train tracks across the northeastern region on Thursday during a strike called to protest the trial of a dozen separatist leaders. (AP Photo/Manu Fernandez)
Demonstrators march along the street, during a protest in Barcelona, Spain, Thursday, Feb. 21, 2019. Protesters backing Catalonia's secession from Spain clashed with police and blocked major roads and train tracks across the northeastern region on Thursday during a strike called to protest the trial of a dozen separatist leaders. (AP Photo/Manu Fernandez)
Catalan police officers remove a demonstrator blocking a road leading to Barcelona city, during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. Strikers advocating for Catalonia's secession from Spain are blocking major highways, train lines and roads across the northeastern region. (AP Photo/Emilio Morenatti)
Catalan police officers remove a demonstrator blocking a road leading to Barcelona city, during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. Strikers advocating for Catalonia's secession from Spain are blocking major highways, train lines and roads across the northeastern region. (AP Photo/Emilio Morenatti)
A man eats inside a coffeeshop with a glass painted with a graffiti reading in Catalan:
A man eats inside a coffeeshop with a glass painted with a graffiti reading in Catalan: "strike", during a general strike in Catalonia, Spain, Thursday, Feb. 21, 2019. Protesters backing Catalonia's secession from Spain clashed with police and blocked major roads and train tracks across the northeastern region on Thursday during a strike called to protest the trial of a dozen separatist leaders. (AP Photo/Emilio Morenatti)