A crocodile is thought to have killed a British mine worker who was snorkelling in Australia, police said.
Saltwater crocodiles are aggressive and dangerous
The body of Russell Harris, 37, from Eastwood, near Nottingham, was found in a river on Groote Eylandt island off Australia's northern coast.
The mines supervisor, who was snorkelling with a friend, disappeared off Picnic Beach on Saturday. His body was found on Sunday.
His parents are flying to Darwin, where the post-mortem tests will take place.
Mr Harris had been working on the island for five months for Gemco, a part of Anglo-American mining group BHP Billiton.
Northern Territory police spokeswoman Sue Bradley said officers on the island thought his injuries indicated he could have died as the result of a crocodile attack.
Another police spokesman told ABC Radio a 4m (13ft) saltwater crocodile spotted in the area was believed to have been responsible for the man's death.
"Police strongly suspect that's what has occurred. There are a number of injuries on the deceased and also there was a crocodile sighted very close to where the deceased was located," he said.
The 33-year-old friend who was snorkelling with Mr Harris called the police and a plane conducted an aerial search of the area, with several civilian vehicles and boats also joining in.
Police said he was last seen about 20m (65ft) from shore, and the alarm was raised on Saturday afternoon.
A BHP Billiton spokeswoman said: "Our priority at the moment is to offer support to the family and also our employees."
The crocodile has not yet been caught and police advised people to take extra precautions if swimming in the area.
Mr Harris's half-brother, Tony Bennett, said his parents "had taken it very badly. Russell was only 37, he would have been 38 at Christmas."
Mr Bennett, 50, from Milton Keynes, said the victim's mother, Jacqueline Harris, had been hospitalised with shock.
Paying tribute to his brother, Mr Bennett said: "You could not meet a nicer guy. He had time for people. You would meet him for the first time and he would always remember something about you the next time you met.
"He was an adventurous guy, he lived life to the full. He was very intelligent and loved his sports. He would try anything, like snow-boarding or water-skiing."