The Brotherhood of Maintenance of Way Employees Division (BMWED), the third-largest railroad union in the U.S., has rejected a tentative deal with its employers, reviving the possibility of a strike in the vital railroad sector.

In a statement on Monday, BMWED announced that its membership rejected the tentative agreement with the Class I freight railroads, saying that union members are still upset about the poor working conditions and compensation details, among other issues.

“I trust that railroad management understands that sentiment as well. Railroaders are discouraged and upset with working conditions and compensation and hold their employer in low regard. Railroaders do not feel valued. They resent the fact that management holds no regard for their quality of life, illustrated by their stubborn reluctance to provide a higher quantity of paid time off, especially for sickness,” BMWED President Tony D. Cardwell said in a statement.

“The result of this vote indicates that there is a lot of work to do to establish goodwill and improve the morale that has been broken by the railroads’ executives and Wall Street hedge fund managers.”

Cardwell also said that union members are concerned with the direction of Class I freight railroads, arguing that mismanagement and greed from their companies have created the ongoing issues.