An Aurora, Colo. mom caught this explosive video of her teenager being bullied.

Amanda Brown told Denver7 News that this is not the first time her daughter has been harassed by these two girls, along with several others.

From some reports, these bullying incidents started over a boy. Brown goes on to say that these girls began to follow her daughter home from school and continued the harassment and threatening. Since this video has gone viral, the Aurora police are actively investigating the claims brought by Brown.

According to Brown, there have been multiple threats of violence against her daughter. In fact, in the video, one of the teenagers threatens to throw the large rock in her hand through the car window.