Tens of thousands of people protested in European cities on Saturday against planned free trade deals with the United States and Canada that they say would undermine democracy and lower food safety, environmental and labor standards.

Organizers — an alliance of environmental groups, labor unions and opposition parties — said 320,000 people took part in rallies in seven German cities, including Berlin, Hamburg, Munich and Frankfurt. Police put the figure at around 180,000.

Smaller protests were also planned in other European cities, including Vienna and Salzburg in Austria and Gothenburg and Stockholm in Sweden.