Five Democratic state lawmakers filed a lawsuit Thursday against Florida Gov. Ron DeSantis (R), claiming he overstepped his authority by denying them access to the Alligator Alcatraz migrant detention facility earlier this month.

The lawmakers argued that the move unlawfully obstructed their oversight responsibilities, The Hill reported.

“The DeSantis Administration’s refusal to let us in wasn’t some bureaucratic misstep,” the lawmakers said in a joint statement, per The Associated Press. “It was a deliberate obstruction meant to hide what’s really happening behind those gates.”

The lawmakers were turned away from the state-run detention facility on Saturday, located deep in the Florida Everglades. In their lawsuit filed with the state Supreme Court, the plaintiffs argue that state law does not restrict their authority to carry out legislative oversight of the facility.

“There is no statute that permits the Governor to overrule the Legislature’s oversight authority. This lawsuit is about defending the rule of law, protecting vulnerable people inside that facility, and stopping the normalization of executive overreach,” the statement from the lawmakers added.