Workers at four of Amazon.com's (NASDAQ:AMZN) German distribution centers have started a two-day strike in a long-running dispute over wages.
The ver.di union said Monday workers at the American online retailer's logistics centers in Leipzig, Bad Hersfeld, Graben and Rheinberg will stay off the job until Tuesday evening.
Amazon employs some 9,000 people in total at nine locations in Germany.
For more than a year now, the union has been pushing for higher pay, arguing that Amazon workers receive lower wages than others in retail and mail-order jobs.
Amazon says its distribution warehouses in Germany are logistics centers and employees already earn wages on the upper end of that industry.
Amazon has agreed to pay Christmas bonuses to workers but ver.di says that's still not enough.