DENVER — Hostess Brands' plans to go out of business will affect workers in Colorado.

The maker of Twinkies and Wonder Bread announced Friday that it will close its plants and lay off all of its 18,500 workers.

The plants include one north of Denver in Adams County. KMGH-TV reported that drivers were still making deliveries but the plant could close by Tuesday.

The Irving, Texas, company says a nationwide worker strike crippled its ability to make and deliver its products at several locations.