Rioting has been reported at a concert at MetLife Stadium in East Rutherford. According to multiple reports, the Hot 97 Summer Jam concert grew rowdy Sunday night, prompting State Police to use tear gas outside the gates, the Asbury Park Press reported. A state police armored vehicle tear gassed the crowd because concert goers, angry the gates were closed, threw bottles, the Asbury Park Press said. State Police officers were wearing riot gear and had their batons out, according to NBC New York. NBC New York reported tasers may have been used.