Amazon workers in more than 20 countries including the U.S. plan to strike and hold protests between Black Friday, November 29, and Cyber Monday, which falls on December 2, according to the activists organizing the labor action.

Thousands of warehouse workers and delivery drivers will strike during the retailer's biggest sale day this week.

Amazon employees around the world are preparing for protests and strikes on Black Friday. The global effort has been organized by UNI Global Union, which represents service industry workers, and activist group Progressive International.