TMZ is reporting that the musician was rushed to hospital in critical condition Sunday night after he was found unconscious and in full cardiac arrest. CBS subsequently confirmed his death.

The 66-year-old was best known as lead singer of Tom Petty and the Heartbreakers. However, he also had several hit singles as a solo artist and was a founding member of the late 1980s supergroup the Travelling Wilburys.

Petty had just finished a tour with the Heartbreakers that culminated with a show in Los Angeles last Monday.

Petty’s music is considered an enduring part of the American rock canon. Amongst his biggest hits are Free Fallin', I Won't Back Down and Learning to Fly.

He was inducted into the Rock and Roll Hall of Fame in 2002.