Teamsters union members working at Costco Wholesale locations across the country voted to authorize a strike on Sunday, with more than 85% of members in favor of hitting the picket lines.

The strike authorization vote passed with an 85% margin, the union said. Costco Teamsters is asking the company to improve wages and benefits such as pensions and job security.

Costco Teamsters voted 85% in favor of authorizing a strike, with the current contract set to expire on Jan. 31.

Costco employees voted to authorize a strike, paving the way for a work stoppage if the labor group and retailer don't reach an agreement by Jan. 31.

The Union workers of Costco Wholesale have authorized a strike after coming to an impasse negotiating with the warehouse retailer two weeks before the current collective agreement is set to expire ...

Costco employees voted to authorize a strike, paving the way for a work stoppage if the labor group and retailer don't reach an agreement by Jan. 31.

Costco employees voted to authorize a strike, paving the way for a work stoppage if the labor group and retailer don't reach an agreement by Jan. 31.

Costco employees voted to authorize a strike, paving the way for a work stoppage if the labor group and retailer don't reach an agreement by Jan. 31.

The Costco Teamsters approved a strike if a contract agreement is not met by Jan. 31, when its current deal with the retailer expires. The union represents more than 18,000 employees nationwide.