A 17-year-old Great Falls High School student faces a felony intimidation charge after he reportedly threatened to carry out a school shooting.

The Great Falls Tribune reports the boy appeared in Juvenile Court Friday.

School resource officer Cory Reeves testified that he arrested the boy after receiving information about a text conversation between the boy and another person in which he said he planned a shooting at Great Falls High on Nov. 2, the Monday after the crosstown football game. Officers took three guns and ammunition from the boy's bedroom.

Reeves said the staff is scared.

Judge John Kutzman ordered the boy held in juvenile detention until the center obtains a GPS monitoring device. The boy could then be released to his parents, but would have to stay at least 1.5 miles away from the school.