An investigation by the Denton County Sheriff's Office has led to the closure of multiple massage parlors in North Texas. The investigation focused on human trafficking activities at these establishments. As a result of the investigation, four massage parlors were shut down.

The Denton County Sheriff's Office conducted the investigation, but further details are not provided here. For more information on the closures and the investigation, readers can refer to the source, FOX 4 KDFW, which reported on the shutdown of the massage parlors in the area.