Lakefield, Australia - Australian police on Wednesday said they may have located a man who had been missing for days after human remains were found inside a crocodile euthanized as part of the search.

The 65-year-old local man went mysteriously missing on Saturday while fishing with a friend in the Kennedy River at Rinyirru (Lakefield) National Park in the north-eastern state of Queensland.

He was identified as Kevin Darmody by local media reports.

During the search operation, police captured two crocodiles, 13 feet and 9 feet in length, believed to be involved in the man's disappearance upstream from where he was last seen.

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Wildlife officers with the Department of Environment and Science euthanized the two animals and found human remains in one of them during a necropsy.

Queensland police said they believed the remains to be of the missing man "pending the formal identification process."

Search and rescue operations for him were stopped, the authorities added.