Perth, Australia - An angler from Australia made an unusual catch on Sunday: a half-eaten stingray. He thinks another animal, like a bull shark, chomped on his catch before he could reel it in.

Sunday, amateur angler Liam Kenny pulled something very strange off of his fishing line: half of a stingray.

Liam shared pictures of his mangled catch to Facebook, showcasing what was left of stingray's body after something took three big bites.

"It’s easily the craziest thing I’ve seen (while fishing) and the biggest ray I’ve caught," Liam told 7news, while recounting how the creepy catch went down. The bricklayer says the ray's wingspan was more than three feet wide.

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Liam told 7news that he was fishing at his favorite spot on the Swan River, which is in the middle of Perth's metropolitan area, on Sunday. He'd cast out and was waiting for something to bite.

Suddenly, something big grabbed his bait. Liam knew his fishing gear couldn't handle something that huge, so he let whatever creature it was run off with the fishing line.

Then, Liam said the line stopped pulling, allowing him to carefully reel in his catch. It turned out that something had caught his catch before him, as he pulled out a chomped on stingray.

Liam posted pics of his mangled prize with the caption,"River monsters are real."

Though Liam jokingly attributed the bite marks on the mangled stingray to a river monster, he actually thinks that a bull shark got the sea animal.

Liam said that the shark probably got the stingray and ate what it needed before letting go, so Liam could reel in whatever was left.

Though sharks are at home in the ocean, according to National Geographic, bull sharks can also hang out in brackish and fresh water. They are considered one of the most dangerous sharks in the world and one of the three most likely to attack humans.

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Per 7news, these super aggressive animals have been spotted in Swan River before.

The "river monster" that got this anglers prize was probably a shark looking for a snack.