Turnstile, a hardcore punk and alternative rock band, is known for its mosh pit-igniting anthems and high-octane concerts.
Heck, the Grammy Award-winning band even started a mosh pit at NPR's typically tame headquarters during its Tiny Desk concert, with lead vocalist Brendan Yates stage diving into the raucous crowd.
During their stop in Oklahoma City for the Never Enough Tour Pt. 2, Turnstile brought the noise while rocking a sold-out show on Monday at The Criterion.
Midway through their set, the rock band paused the concert to address an overly aggressive security guard who allegedly threw punches at fans who hopped over the barricade.
Yates hopped down from the stage toward the end of the band's "Keep On Moving" performance and separated security who was manhandling fans.
A fan near the front row captured the incident on video, which was then shared on Reddit.
"He's done. He's done," Yates shouts into the mic in reference to one of the security guards.
Bassist Franz Lyons later joined Yates on the floor. Shortly before the concert resumed, Yates addressed the situation on stage.
"To the security that's doing a great job, a great job at what you're doing—thank you. There are some that didn't get the assignment," he said.
"I know all of you are coming up here and having a good time. There's high energy. There's movement. And there's no need for anyone to be swinging on anyone just coming over the barrier."
Yates also declared that the band would not perform unless the security guard involved was removed from the venue.
"That security guard cannot be here. We won't play if he's still here. To the rest [of the security team], thank you for adjusting and keeping this peaceful."
According to Reddit comments, Turnstile finished out the show as planned.
The band is scheduled to perform Wednesday, Oct. 7, in St. Louis with Vince Staples. After that, the Never Enough Tour Pt. 2 will make stops in Austin, TX, Mayer, Arizona, Ventura, California and Las Vegas, according to the band's website.
The band is also slated to perform at Tyler, the Creator's Camp Flog Gnaw Festival in November.
