Thousands of demonstrators packed a German Alpine resort town on Saturday to demonstrate over a wide range of causes, from climate change to free trade, before the arrival of the leaders of the Group of Seven industrialized democracies for a two-day summit.

Though the demonstration in Garmisch-Partenkirchen was largely peaceful, a small group of protesters clashed with police during a march through the town. They charged officers, who responded with pepper spray, and at least two protesters had to be taken away by medics for treatment. Police said one officer was also injured by the pepper spray. There were no arrests.

During the demonstration, black-clad anarchists chanted slogans against police violence, anti-capitalists held signs denouncing a proposed trans-Atlantic trade deal, while peace protesters waved rainbow flags and signs with anti-war slogans.