Spain’s ‘Indignant’ protesters took to the streets again on Friday, one day after clashes with police in which 20 people were injured.
Thursday’s unrest is the most serious incident since protests began three months ago to voice a wide array of grievances.
Demonstrators are angry at the government’s handling of the economic crisis, soaring unemployment and the Spanish political class.
Around 200 demonstrators gathered at Madrid’s Plaza de Oriente after officers blocked the capital’s main square, Puerta del Sol, on Thursday night.
The Indignant movement began in Puerta del Sol on May 15, before spreading to other towns and cities nationwide.
Opinion polls indicate two-thirds of Spaniards back their protests.
Spain’s unemployment rate of about 21 percent is among the highest in the 17-nation euro zone.
The country is forecast to amass a public debt pile of 588 billion euros by the end of the year; that figure would be equal to 67 percent of its gross domestic product.