Milwaukee, Wisconsin - A Patti Labelle concert at The Riverside Theater in Milwaukee on Saturday night took a scary turn when the singer was abruptly pulled off the stage mid-show.

A video taken from the audience shows the 78-year-old being rushed off the stage by security as she was speaking with fans.

The scary moment filled the crowd with confusion as fans asked one another what had just happened.

The concertgoers were then evacuated from the theater.

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Another fan shared a video recorded outside the venue after the evacuation, saying they "did not know" whether they could return inside.

Pabst Theater Group confirmed via Twitter that the show was evacuated and subsequently postponed due to a bomb threat that was being investigated by police. Law enforcement has confirmed that the audience members were all safely evacuated, and there were no injuries.

"We are thankful for the efforts of the Milwaukee Police Department and our customers and staff for their safe and orderly exit," the statement said.

The police have not provided further details about the threat.

Pabst Theater Group said they are in the process of arranging a rescheduled concert with Labelle.