RAVENA, N.Y. (AP) — Four students in upstate New York who police say posted videos mimicking a school shooting with fake blood and racial slurs have been arrested.

The Albany County Sheriff's Office says two videos were made by Ravena-Coeymans-Selkirk students and posted to Instagram. The Times Union reports the video shows a student dressed in black shooting people with a fake gun.

Sheriff Craig Apple says the videos were "very graphic, very racist and horrifying."

Police say another student reported the postings Friday, and police arrested all four students Saturday. They're now charged with making terroristic threats, a felony.

No real weapons were recovered and the videos did not specifically threaten violence against any schools or people.

The students, all juveniles, have been suspended.

Apple praised the unnamed student who reported the videos.

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Information from: Times Union, http://www.timesunion.com