BERLIN — A German labor union says striking workers at four Amazon.com distribution centers in Germany will remain off the job until Christmas Eve.

The ver.di union said Friday the strikes at Bad Hersfeld, Leipzig, Graben and Rheinberg will last until the afternoon of Christmas Eve on Dec. 24. Companies in Germany normally shut down for the holiday at that time and reopen on Dec. 27, or the next working day.

The walkouts at four of Amazon's distribution centers in Germany are part of an effort by workers to push for higher pay.

The union says 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 earn relatively high wages for that industry.