(CNN) An 8-year-old Oklahoma boy who "got a hold" of his parents' handgun accidentally shot his twin in the hand Friday morning, Midwest City police said.

The victim's life was not at risk, Assistant Chief Sid Porter said.

The parents were home in Midwest City -- about 8 miles southeast of Oklahoma City -- and heard the gunshot in another room, Porter said. They called 911.

No charges are expected, Porter said.

Fire rescue teams arrived about 7:40 a.m., said David Richardson, a Midwest City Fire Department spokesman.

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