Two Longmont Safeway locations have joined a growing Colorado strike against the grocery giant.

Workers at the locations on Ken Pratt Boulevard and at 1632 Hover St. stationed themselves in front of their respective stores Thursday. These locations are the second and third known to join the strike in Boulder County — the first was the Boulder location at 3325 28th St. as of Tuesday.

In the midday June heat on Thursday, workers waved signs and urged any approaching customers to shop elsewhere. The workers are represented by the union United Food and Commercial Workers Local 7, which is striking against Safeway and parent company Albertsons.

The union is calling for wage increases, stronger health benefits, staffing improvements, vacation for senior workers, pensions and retirement benefits.

UFCW Local 7 posted photos of each Longmont strike on its Facebook page Thursday. As of that day, at least 28 Safeway stores and one distribution center have joined the strike. Locations impacted on the Front Range stretch from Pueblo to Estes Park, and workers from one location in Grand Junction are striking as well.The union chapter posted a YouTube video of its president, Kim Cordova, in front of a Safeway Wheat Ridge location Thursday.

“We are going back to the bargaining table with Safeway/Albertsons, negotiating for the 69 different bargaining units in the state of Colorado and Wyoming,” Cordova says in the video.

“Those of you that are on the picket line, stay on the picket line — continue to hold them down.”

Cordova also addressed King Soopers union members in the video. She said the union is “getting ready to bargain with King Soopers/City Market” July 1 and July 2. A roughly two-week strike involved about 10,000 workers amid February’s King Soopers walkout.

“When we pulled the first picket lines with Safeway, we able to get Safeway to give up some of their health care concessionary proposals, the same proposals that King Soopers has on the table right now,” Cordova says in the video.