Singer Chris Brown is listed as an alleged suspect in a battery investigation at the Palms Casino Hotel in Las Vegas, the Las Vegas police said today.

Brown had a scheduled appearance Friday night at Drai’s Nightclub in Las Vegas, according to the nightclub’s calendar.

Police would not immediately confirm additional details.

The investigation is ongoing.

Brown’s publicist said the alleged victim’s “statements are unequivocally untrue” and “a complete fabrication.”

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