CHICAGO (CBS) -- Starbucks workers were back on the picket line in Chicago Sunday afternoon—as they continue a five-day strike Friday to protest lack of progress in contract negotiations with the company. Baristas at the store at 5964 N. Ridge Ave.

The strike, which began Friday in Los Angeles, Chicago and Starbucks’ hometown of Seattle, continued spreading to stores across the country over the weekend.

Workers at some Starbucks stores started a five-day strike Friday in three U.S. cities, including Chicago, to protest lack of progress in contract negotiations with the company. S