A 9-year-old Mississippi boy is accused of shooting his 13-year-old sister in the head after they had an argument over a video game, WTVA reported Sunday.

Monroe County Sheriff Cecil Cantrell said deputies responded to the scene around 1 p.m. Saturday.

Deputies said the boy allegedly had grabbed a gun when his sister would not give up the video game controller. Cantrell said the bullet penetrated the girl’s brain.

The teen was taken to Le Bonheur's Children's Hospital in Memphis, where she died Sunday night, WTVA reported.

This case is under investigation, WTVA reported.