Safeway workers in several Colorado cities entered the third day of labor strikes Tuesday against Safeway and Albertsons over alleged unfair labor practices, with picketing in Grand Junction prompting a temporary store closure.

Safeway and Albertsons workers in several Colorado locations went on strike, and many more stores are expected to strike soon.

Workers in Estes Park, Fountain, two in Pueblo, and a Safeway distribution center in Denver, walked out on Sunday and were joined by employees from Castle Rock and the Littleton location on Mineral Ave on Monday.