This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

Please enable Javascript to watch this video

O'Fallon, Mo. —A high school student is in juvenile custody after threatening fellow students in O'Fallon, Missouri.

Authorities put a stop to the threat in the middle of the night.

The suspect is a student Liberty High School, which is in the Wentzville R-IV School District.

About 1,300 students attend the school.

Police started getting calls from parents around 10:30 pm last night and were zeroing in on the suspect by midnight.

Children alerted their parents to a fellow student’s posts on Snapchat.

Those posts included threatening messages and images toward a group of students, including at least one image with the student holding a firearm, police said.

Police took that student into custody at his home.

The weapon turned out to be an AirSoft rifle that shoots BB’s, police said.

Parents and students tell Fox 2/News 11 the threat was the student’s response to being pushed down the stairs.

Parents were notified by e-mail before classes began Wednesday.

All potential security enhancements were ‘on the table’, Superintendent Dr. Curtis Cain said.

Still, the eyes and ears of parents and students are a district’s best defense, which certainly proved true for Liberty High School.

Authorities are releasing no further details.

Dr. Cain said he would share more with parents as the investigation progresses.

38.810608 -90.699848