At least 36 young people were hospitalized and dozens more treated at the scene Wednesday night after attending an electronic dance show at Boston's TD Garden featuring Swedish disc jockey Avicii.
At one point, medical services declared a Phase 2 Mass Casualty Incident, which involves more than 30 people, according to Boston.com. Many of the victims were taken out of the concert hall on stretchers. There were no fatalities.
Also read: Correction: Peace Concert story