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A man looks at a fire during a protest in Madrid

A man looks at a fire during a protest in Madrid November 4, 2013. Spain's labour unions called for an indefinite strike from Tuesday in Spain's capital for the street cleaning and park maintenance sectors in protest against announced layoffs that could affect around a thousand municipal workers, according to local media. REUTERS/Juan Medina(SPAIN - Tags: CIVIL UNREST BUSINESS EMPLOYMENT POLITICS)

Madrid trash collectors protests

Trash collectors in Madrid have started bonfires and set off firecrackers during a noisy protest in one of the Spanish capital's main squares as they prepare to start an open-ended strike.

Hundreds of street cleaners and garbage collectors who work in the city's public parks converged on the Puerta del Sol plaza late Monday. (AP)