A DeKalb County woman says her son brought a gun to school because he was being bullied.

According to a police report obtained by Channel 2 Action News, classmates of the Miller Grove High School student reported seeing the gun and police found the weapon in the boy’s backpack on the school bus, along with seven bullets.

The 15-year-old was arrested and has been held in juvenile detention since the incident, which took place earlier this month.

The boy’s mother, Alisha Baker, said she didn’t condone what her son did but that he was motivated by bullying.

His attorney, Adeline Alexander, said just before the incident, five older boys attacked him at school.

“They jumped him in the stairwell and followed him to his bus after he got away, surrounded the bus, and then threatened to shoot him up in the house,” Alexander told Channel 2.

“I’m not condoning his actions, he was wrong, but I haven’t heard anything further from the school about the kids that were bullying him in school,” Baker said.