A Santa Clarita Valley teen admitted Wednesday to posting shooting threats on the social media site Instagram nearly a year ago, District Attorney officials said Tuesday.

“I can confirm that he admitted to one count of making criminal threats and he was placed on probation,” said Los Angeles County District Attorney spokesman Greg Risling, in an email to KHTS AM-1220. “He still is 15 (years old).”

The teen, whose identity is not being released because he is a minor, was reportedly a Golden Valley High freshman when he posted the threats.

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The threats, which posted through the Instagram account “Yaboyplank,” showed pictures of guns and said: “TO THE PEOPLE OF THE SCV AREA. THERE WILL BE A HUGE (expletive) SHOOTING SOON…  ” and went on to say the threat was aimed at high school students.”

The student was arrested around 9 a.m. Aug. 17 in connection with the alleged Instagram threats, according to a Sheriff’s Station official.

The teen is being charged as a minor. The teen has denied the charge, which is akin to pleading not guilty in adult court.

The incident was one of several in recent months that drew widespread activity to the Santa Clarita Valley regarding teens and their alleged social media activity.

A representative of the Detectives Bureau for the Sheriff’s Station said the photos appeared to be stock Internet footage and “there is not evidence the suspect has any access to these guns,” according to Lt. Brenda Cambra of the Santa Clarita Valley Sheriff’s Station.

“Detectives immediately responded to the station to begin working this investigation,” Cambra said. “A police report for Criminal Threats was written. At least twenty-five additional calls from residents alerting us to this post were received during the night.”

Deputies assigned to the Santa Clarita Valley Station received a phone call from a woman reporting that threatening posts had been made on Instagram around 10 p.m. Saturday.

The Instagram account used a photo of a Valencia High School in Texas to threaten a shooting in the Santa Clarita Valley in another post.

“Detectives immediately responded to the station to begin working this investigation,” the statement from Cambra read.

The Hart district released a statement to parents the day before the arrest morning stating:  it “takes threats of this nature very seriously. We are working with the Los Angeles County Sheriff’s Department.”