TAMPA, Fla. -

A legally blind Tampa man shot an intruder who had broken in through a window in the house, authorities said.

According to Tampa police, 50-year-old Melchisedec Williams heard a crash and stomping late Sunday and got his gun. He then recognized the voice of his nephew, 15-year-old Isaiah Moses Carter, police said.

Williams told police that he thought his nephew was there to harm him, so he fired the gun to protect himself.

Carter was taken to Tampa General Hospital in serious condition. Officials say his injuries didn't appear to be life-threatening.

An investigation is ongoing and charges are pending.