The Texas Department of Public Safety evacuated protesters from the Texas Capitol on Tuesday after a reported possible threat against lawmakers closed the building and surrounding grounds.

Texas Rep. Nicole Collier agreed to return to the state after fleeing to delay a vote on GOP gerrymandering, but declined to sign anything—and so, Republicans locked her in the Capitol.

Texas Republicans mandated that Democratic lawmakers not be allowed to leave the state house without a permission slip and a police escort.

The Republican-controlled Texas House of Representatives on Wednesday kicked off a heated debate over a new congressional map creating five new potential GOP seats that is expected to pass the chamber later in the day as part of a growing national redistricting battle.