Irukandji syndrome is a condition induced by venomization by the sting of Carukia barnesi, a species of Irukandji jellyfish, and certain other box jellyfish. Unless immediate medical action is taken, victims can go into cardiac arrest and die. The syndrome was given its name in 1952 by Hugo Flecker, after the Aboriginal Irukandji people who live in Palm Cove, north of Cairns, Queensland, Australia, where stings are common.