A young woman died after collapsing at the Molson Amphitheatre Sunday afternoon, where a Vans Warped Tour concert was taking place.

EMS officials said people saw a woman in her early 20s lying on the grass and not breathing. They called 911 around 12:40 p.m. and attempted CPR.

Paramedics arrived and found the woman without a pulse. She was transported to Toronto Western hospital in the highest priority, where police say she was pronounced dead.

The concert scene was cleared shortly after, but attendees were told this was for weather concerns. They were moved to a covered venue.