Just last month, 29 people were hospitalized after an Avicii show in Toronto, Canada. Last night, drugs, fights and bad drugs were cited as the cause of a mass casualty incident at Boston's TD Garden during an all-ages Avicii show. At least 38 of the attendees have been hospitalized although reports indicate that this number can be higher.
While there have been no reports of fatalities, an EMS worker says that a “dangerous substance” is being seen as the cause of the hospitalizations.