Photos, video, and text. The video is in Catalan but I'm pretty sure it says that the demonstration was peaceful until the police showed up and charged into the crowd.
During last week’s protests in Barcelona, the peaceful indignados discovered about a dozen police infiltrators in their midst. The undercover riot police, posing as anarchists, were suspected by protesters of instigating violence against police and Catalonian government officials.
http://roarmag.org/2011/06/riot-police-barcelona-infiltrate-protest-provoke-violence/?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+roarmag+%28Reflections+on+a+Revolution%29&utm_content=Yahoo!+Mail
