DETROIT (WWJ) — Crews responded to a kitchen fire at the MGM Grand Casino in downtown Detroit on Thursday evening.

The Detroit Fire Department said crews arrived at the casino on 3rd Ave. just south of I-75 and found a fire in the Wolfgang Puck Steakhouse at around 7:30 p.m. The fire was confined to a broiler and ductwork, and the installed fire suppression system operated normally.

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Deputy Fire Commissioner Dave Fornell told WWJ that even though the sprinkler system worked properly, firefighters still had to go up on the roof of the building.

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“Our people came in and they traced the fire up the ductwork to the roof and made sure the fire didn’t extend out of it,” Fornell said. “So it was a win-win for everybody. Damage was minimized — stuff like this happens every once and a while.”

There were no reports of any injuries. People were seen going into and out of the casino even as fire crews remained on the scene.

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The cause of the fire is under investigation.