The Starbucks strike spread to more than 300 stores in the United States on Tuesday. According to the workers’ union, around 5,000 workers are expected to take part in the five-day industrial action, which ends later today.

Workers at more than 60 stores walked off their jobs in 12 major cities on Monday. The Starbucks Workers Union, which represents workers at 525 stores across the country, predicts the Christmas Eve expansion will be the largest yet.

“Half the baristas in my store drive 30 minutes one way because they can’t afford to live closer to work,” Lauren Hollingsworth, a barista from Ashland, Oregon, said in a union statement. “These strikes are a first act of strength,” she added.

The roughly 60 stores that were temporarily closed over the weekend and Monday represent “a very small number” of the more than 10,000 stores in the U.S., Starbucks noted.

“We expect Workers United to close additional stores tomorrow – Christmas Eve,” said Sara Kelly, Starbucks executive vice president and chief partner officer, who noted that 97% to 99% of its stores would not be affected.

“We stand ready to continue negotiations when the union returns to the bargaining table,” Kelly said in a statement released by the company on Monday. On Tuesday, the company referred to this statement when asked to comment on the extended strike.

The five day strike started on Fridaybringing it into play during the holiday shopping season, and expanded by More stores opened in more cities over the weekend, with workers protesting a lack of progress in contract negotiations with the Seattle-based company.

Where the Starbucks strikes are happening

According to the union, baristas have picketed and closed Starbucks locations in 13 metropolitan areas in recent days. These include locations in:

• Boston
• Chicago
• Columbus, Ohio
• Denver
• Los Angeles
• New York City
• Philadelphia
• Pittsburgh
• Portland, Ore
• Seattle
• St Louis
• Tucson

Active picketing planned for Tuesday includes the following 10 locations, the union said:

• Atlanta 10830 Haynes Bridge Road, Alpharetta, GA 12pm EST
• Buffalo, NY 933 Elmwood Ave, Buffalo, NY 12pm EST
• Chicago 5964 N Ridge Ave, Chicago, IL 12:00 PM CST
• Columbus, Ohio 88 East Broad St, Columbus OH 43215 12pm ET
• Dallas 2300 S Loop 288 Denton, TX 12pm CST
• Los Angeles 3241 N Figueroa Street, Los Angeles, CA 10am PST
• NYC: Manhattan 444 Broadway, New York, NY 12:00 PM EST
• Philadelphia 1528 Walnut St, Philadelphia, PA 9am EST
• Portland 720 SW Broadway, Portland, OR 12:00 PM PST
• Seattle Pike Street Roastery, 1124 Pike St, Seattle, WA 1:00 PM PST

According to the union, the company has not fulfilled its commitment made in February to reach a collective agreement this year.

Starbucks proposed a stimulus package that includes no new pay increases for unionized baristas and includes a 1.5% increase in coming years, the union said Friday.

Starbucks said Workers United ended talks early this week. According to the coffee chain, wages and benefits already amount to $30 an hour for those who work at least 20 hours a week.

The union also wants Starbucks to resolve outstanding legal issues, including hundreds of unfair labor practice charges that workers have filed with the National Labor Relations Board. The agency has also opened or settled hundreds of lawsuits against Amazon. On Thursday, a day before the Starbucks strikes, the Teamsters union formed announced strikes to seven Amazon delivery centers.