That's not something you tend to see in Pittsburgh.

A family that was fishing near the Monongahela River made a very surprising discovery on Saturday: They saw an alligator sunning itself on the riverside trail and promptly called 911 to report it.

The gator, which weighed about 10 pounds and was around 3 feet long, tried to hide from officers underneath a fallen tree -- making it difficult for them to use catch poles and tongs to grab it, according to a report from the Pittsburgh Bureau of Animal Care and Control.

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Eventually, officers dug into the soil to create an opening and captured the alligator by hand about an hour after 911 had been called.

They used a nylon strip to tie the gator's mouth shut and placed it inside a crate.

According to the officers on the scene, the alligator was likely a pet that someone released into the wild.

It was also apparently a bit overweight, which led officers to suspect that the alligator was eating well by the banks of the Monongahela.

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The alligator, which was not injured and appeared healthy, will reportedly stay at Humane Animal Rescue until a shelter or refuge is identified for relocation.

Alligators require a warm climate and would likely not survive a cold Pennsylvania winter.