(THE HILL) — The Laborers’ International Union of North America (LIUNA) left the BlueGreen Alliance on Friday, citing a disagreement with the group’s members over the Keystone XL pipeline.

LIUNA, a vocal Keystone supporter, took aim at other unions for opposing the project.

“We’re repulsed by some of our supposed brothers and sisters lining up with job killers like the Sierra Club and the Natural Resources Defense Council to destroy the lives of working men and women,” LIUNA General President Terry O’Sullivan said in a statement.

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