Dozens Hospitalized After Avicii Concert in Boston

Avicii at the iHeartRadio Music Awards
Jason Merritt/Getty Images

Avicii backstage at the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California.

An Avicii concert at Boston's TD Gardens ended with multiple people taking trips to the hospital, The Hollywood Reporter has confirmed.

Roughly 38 people, many of them teenagers, were hospitalized after using dangerous substances, The Boston Globe reports. The victims were treated for minor symptoms.

At least five ambulances were on the scene, and bystanders said concertgoers were treated for dehydration after using drugs and alcohol, according to on-the-scene tweets from New England Cable News reporter Josh Brogadir.

The concert was part of Avicii's True tour.