A railing collapsed during a concert by rappers Snoop Dogg and Wiz Khalifa in southern New Jersey, injuring at least 10 people late on Friday, according to local officials. The incident occurred at BB&T Pavilion, a popular outdoor venue in Camden.

The collapse took place shortly before 10:30 p.m. EDT. Several ambulances were reportedly dispatched to the venue. Camden County officials told NBC10, an NBC affiliate, that about 10 to 15 people were hurt and five were rushed to hospitals. Conditions of the injured were not known and the numbers were likely to go up.

The fence, which separated a sloping lawn from the covered part of the concert hall, collapsed when Snoop and Khalifa climbed on to a secondary stage, a concertgoer told NBC10. The lawn is reportedly about 10 feet above a concrete walkway.

Following the accident, the concert was cancelled.