STS9’s show last night at the Asheville Civic Center was cut short after six people were rushed to the hospital and many other medical emergencies were reported, according to Fox Carolina.

Commander Gary Gudac and the concert promoter agreed to end the show early after the crowd became unruly and began throwing bottles and other items at security guards and others in the crowd. As Fox Carolina points out, concertgoers took to social media to post about the incident, saying that people ingested bad drugs with some reporting people convulsing in the crowd.

Gudac said that two of the hospitalized fans remained in critical condition. There were also several arrests made following the cancellation of the show.