The 23-year-old man, who has not been identified, was bitten by the creature Thursday as he was pulling in a fishing net in a remote part of the Northern Territory, police said.
Sea snakes are highly venomous but not usually aggressive, so they rarely bite humans. This may be the first recorded death from a sea snake in Australia, the BBC reported.
A rescue helicopter with a medical team was sent from Darwin, a city 435 miles away from the man’s location, CareFlight spokesman David Wheeldon said. The crew didn’t make it in time to save the man, however.
Emergency responders didn’t have many options to help a person who was in such a remote location, St. John Ambulance spokesman Craig Garraway said.
Professor Bryan Fry, who works at the University of Queensland, called the incident “tragically unlucky” and said sea snakes are “very gentle animals.”