He was 86. Yarrow, co-writer of "Puff, the Magic Dragon" and other timeless folk hits, reportedly died Tuesday morning at his New York City home, surrounded by family, after a four-year battle with bladder cancer.

Peter Yarrow, the singer-songwriter who was one-third of the folk trio Peter, Paul and Mary, has died at age 86, his representative confirmed to ABC News. Yarrow died of bladder cancer, according to the representative.

Peter Yarrow, the singer-songwriter, activist and founding member of the folk trio Peter, Paul and Mary, has died at 86 after battling bladder cancer.