False reports of a shooting were sparked during a GloRilla concert in Rochester, New York, on Sunday night, which caused people to panic and cause a stampede that killed at least one and injure eight others.

At around 11 pm on Sunday, rappers GloRilla and Finesse2tymes were performing at the Main Street Armory when fans thought they heard gunfire inside the venue, the Rochester Police Department told The Associated Press. However, after responding to the event site, the police found “no evidence to support a shooting having occurred,” Rochester Police Lt. Nicholas Adams said in a statement.

The person fatally wounded in the stampede was a 33-year-old woman. Eight others were injured among others and two of them are in critical condition. “The injuries appear to be as a result of a large crowd pushing towards the exits following accounts of individuals hearing what they believed to be gunshots,” Adams said.

It is not clear where the fans first learned about the fake gunshots in the 5,000-capacity venue.

GloRilla said in a tweet on Monday morning that she was “just now hearing about what happened.” “Praying everybody is ok,” the artist said.