Starbucks baristas went on strike at several stores in Chicago, Seattle and Los Angeles on Friday, with their union warning the walkouts could spread to hundreds of cafes by Christmas Eve if the coffee giant does not meet workers’ demands at the bargaining table.

On the heels of the Christmas rush, Starbucks union employees plan to strike in three states Friday citing issues over wages, benefits and staffing. A five-day strike is slated in Chicago, Seattle, and Los Angeles,

Starbucks workers in several major US cities are planning to strike until Christmas Eve, according to the Starbucks Workers United union. The union announced on Friday that workers in three cities — Seattle, Los Angeles, and Chicago — will strike beginning on Fridayand continuing until Christmas Eve.