Crocodile Hunter Steve Irwin has been killed in a stingray attack near Cairns on Australia's far north coast.
It is understood he was killed by a stingray barb that went through his chest and wounded him near his heart.
He was swimming near Batt Reef off the coast of Port Douglas filming an underwater documentary when the tragedy occurred.
An emergency services helicopter was flown to the area about 11am (AEST) with a doctor and paramedic on board but it was too late for the Aussie icon.