Dozens Hospitalized At Avicii Concert In Boston

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Dozens of young concertgoers had to be rushed to the hospital Wednesday from TD Garden in Boston after consuming "a dangerous substance."

Between 50 and 80 people were taken to area hospitals, including Tufts Medical Center and Massachusetts General Hospital, while many others were treated by Boston EMS at the concert venue, according to a report in The Boston Globe.

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Reports vary from concertgoers and officials, but at least a dozen ambulances were at the venue to transport those afflicted, most of whom were between 16 and 25 years old. According to medical service representatives, none of those hospitalized faced symptoms that were life-threatening.

The concert was headlined by Electronic Music artist and Swedish DJ Avicii, and Boston EMS officials are blaming the hospitalizations on drug use, possibly hallucinogens, as well as alcohol, heat and exhaustion.

Many concertgoers posted videos of Avicii's performance on Instagram that showed the size, energy and density of the crowd.

One audience member posted a video that allegedly shows police trying to rouse an impaired concertgoer. It's unclear if the person in this Instagram video was one of those taken to the hospital.

Live Nation Entertainment, the organizers of the Avicii concert at TD Garden, released a statement to ET regarding the incident, saying that many of those taken to the hospital were actually not admitted into the venue because they allegedly showed up intoxicated.

"While this is still a developing situation, based on early reports from the venue it appears the majority of the transports were people outside the venue who were too impaired to be allowed inside the venue and access to the concert. Out of an abundance of caution they were transported for medical evaluation and assistance," the statement reads.

Avicii also sent out a tweet after news broke of the hospitalizations: