Amazon warehouse workers are striking across Europe on Prime Day

Amazon warehouse workers in multiple European countries are walking off the job today in protest of poor working conditions, according to a report from NBC News. The strike is designed to coincide with Amazon’s Prime Day, the made-up holiday the e-commerce company uses to juice sales.

Amazon workers primarily in German, Poland, and Spain are participating, with union representatives alleging Amazon has been working to freeze salaries, reduce medical leave pay rates, and strip other rights from its warehouse workforce.

“The message is clear — while the online giant gets rich, it is saving money on the health of its workers,” Stefanie Nutzenberger, a top official responsible for retail workers at German trade union Verdi, told NBC. Germany’s strike will last one day, although Amazon claims it will not impact its ability to process orders and maintain shipping commitments during Prime Day.

Meanwhile, workers at a San Fernando fulfillment facility outside Madrid are engaging in a three-day strike to gain a more favorable contract after the former collective agreement for the Comisiones Obreras (CCOO) union expired. Spanish workers are trying to avoid restrictions on time off and wage cuts, and the same group organized a two-day strike back in March. In Poland, warehouse workers have organized a work-to-rule protest, which involves doing only the bare minimum required by contract as a way to slow down industrial productivity.

“We believe Amazon’s Fulfillment Center jobs are excellent jobs providing a great place to learn skills to start and further develop a career,” Amazon said in a statement given to Reuters. The company also believes that only a small fraction of its 12,000-person workforce in Germany, the largest international retail market after the US, are participating in the strike.