Dallas Fort Worth International Airport canceled plans to install a facility commonly used for Islamic prayer after Gov. Greg Abbott on Friday threatened to withdraw state and federal funding, as Houston's mayor defended George Bush Intercontinental Airport's amenity.

Abbott sent a letter to the North Texas airport's CEO Christopher McLaughlin, as well as the mayors of Houston, Dallas and Fort Worth, stating his office was in the process of reviewing all grant funds over facilities in their cities' airports.

He also sent a letter to U.S. Transportation Secretary Sean Duffy to refer the airports for federal investigations.