Jeremy Wade of Bath, England, said he reeled in the tigerfish, a larger cousin to the piranha, while fishing in the River Congo and set it free after taking a picture, The Sun reported Thursday.
"The teeth on it are incredibly sharp and are about the same length as a great white shark," Wade said. "It also has an extremely powerful bite and has been known to consume prey the same size as itself, attack people and take pieces out of crocodiles."
Footage of Wade making his spectacular catch is scheduled to air next month on ITV's "River Monsters."
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