A woman was fatally shot outside XTC Cabaret in Dallas early Saturday morning.

Police say the woman was shot by a security guard, although it is unclear what led the guard to shoot at the woman. Officers responded to the incident at about 5 a.m.

Police told NBC DFW the security guard was detained and that the investigation is ongoing.

This is at least the third lethal incident at the strip club in recent years.

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John Carlo Casiano-Torres, 23, and a woman were shot outside the club in 2017. Casiano-Torres died of his wounds. The woman sustained a gunshot wound to the leg.

Then, in 2019, two security guards at the club fired more than 20 shots at 34-year-old Jason Hill while he was driving his truck. Hill almost ran someone over backing up and would not stop his vehicle, so the guards opened fire into the truck. Both were subsequently arrested and charged with murder.

Police and other first responders in the city claim they are overwhelmed with incidents of violence at or near strip clubs and other late-night adult venues in the early-morning hours, according to The Dallas Morning News.

In January, the Dallas City Council voted unanimously to order sexually-oriented businesses to close between 2 a.m. and 6 a.m. in an attempt to help police curb crime. The ordinance was put on hold in March, pending a judge’s ruling on whether or not the order is constitutional.

The Dallas Express reported that lawyers for adult entertainment clubs and the City of Dallas had presented their arguments, and a hearing was held ahead of Memorial Day weekend.

Judge Barbara Lynn stated in her opinion, “The court concludes that the data relied on by the City Council does not fairly support the city’s stated rationale for the ordinance of reducing crime because the data artificially enhances crime data associated with (sexually oriented businesses), and in doing so, unfairly attributes adverse secondary effects to SOBs.”