A 15-year-old girl who suffered a heart attack during Limp Bizkit's set at the Big Day Out festival in Sydney, Australia, last week died on Wednesday (January 31).

The teenager, identified by authorities only as Jessica, died at Sydney's Concord Hospital around 3:30 p.m., according to a report in the Sydney Morning Herald.

Jessica was transported to the hospital after being pulled from a mosh pit and revived backstage at the concert on Friday, and she was listed in critical but stable condition on Sunday night. The Australian Associated Press, who initially reported Jessica's age as 18, said her condition was upgraded to critical on Monday.

A hospital spokesperson told the Herald that Jessica died peacefully and that the girl's family has requested that no additional details be released.

Limp Bizkit, who were headlining the multi-city Big Day Out festival, pulled out of the three remaining shows following the Sydney performance, citing concerns with safety and security measures (see [article id="1438588"]"Limp Bizkit Exit Big Day Out Because Of Fan Injuries"[/article]).

"We are devastated that Jessica died, and really nothing can describe the sadness and anguish we're feeling," the band said in a statement released Wednesday. "We offer sympathy, prayers and compassion to her family and friends. The loss of her life will impact ours forever."

In their own statement, festival organizers expressed their "deepest sympathy at the tragic death of Jessica" and said that their "hearts and thoughts go out to her family and friends in this time of sorrow."

"The Big Day Out has always been a celebration of youth and the joy of music," the statement said. "It is incredibly devastating for all involved in the event that a young woman has lost her life in what should have been a joyous day of festivity with her friends."

Aside from issuing condolences, the Big Day out abstained from making any further comments on the matter "until the full circumstances surrounding Jessica's death are known."

Big Day Out co-organizer Ken West told the Herald on Sunday that future editions of the traveling festival would likely perform to smaller crowds or be divided over a two-day period for each city it plays.

The Big Day Out festival will hit Adelaide on Friday and Perth on Sunday.