Rescue crews spent nearly an hour Friday freeing a 15-year-old boy from waist-deep mud in Pasadena, officials said.

The teen was transported to Maryland Shock Trauma Center with serious, but not life threatening injuries, said Anne Arundel County Fire Department Capt. Michael Pfaltzgraff.

It wasn't immediately clear how the teen ended up in the mud near Water Oak Point and Old Water Oak Point roads, he said.

Crews were dispatched around 1:30 p.m. A technical rope rescue using wood planks was used to free the teen.

Pfaltzgraff said the teen was treated for hypothermia after being stuck for about an hour and a half.

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