Unionized Starbucks employees in Seattle plan to hit the picket line Friday in a labor action expected to continue through Christmas Eve.

Workers in about 10 to 15 stores across the Los Angeles, Seattle and Chicago areas kicked off the strike, which spread to a similar number of stores in three additional metropolitan areas each day. By Monday, baristas in more than 50 stores in cities like Boston, Dallas, Denver, New York and Philadelphia did not report for work.

Unionized Starbucks employees conducted a one-day strike outside two Omaha locations Tuesday morning to advocate for better working conditions.

Starbucks' union says workers are walking off the job at some 300 — out of over 10,000 — stores across the U.S. as contract negotiations falter. The company urges it to return to the bargaining table.

In what the union has dubbed "The Strike Before Christmas," more than 5,000 workers are walking out of 300-plus Starbucks locations nationwide Tuesday.

A rolling strike of Starbucks baristas began Friday and grows to include about 300 of the coffee giant's shops across the U.S.

Thousands of Starbucks baristas have walked off the job including employees in Philadelphia. Workers United says Starbucks proposed an economic package without an immediate wage increase and a guaranteed raise of only 0.

In what the union has dubbed "The Strike Before Christmas," more than 5,000 workers are walking out of 300-plus Starbucks locations nationwide Tuesday.

Starbucks baristas' fast-growing unfair labor practice strike is expected to hit historic levels Tuesday as hundreds of stores nationwide prepare to join walkouts at the coffee giant. The Starbucks Workers United strike,

More than 5,000 workers were expected to take part in walkout that ends later on Christmas Eve, their union says.