A South Carolina high school freshman posted an image of himself wearing a skee mask and holding what appears to be an assault rifle with the caption, “Round 2 of Florida tomorrow.”

According to TMZ, the 9th grade student is now in custody after a concerned parent alerted authorities and sent along a screenshot of the image posted to Snapchat.

Deputies located the student at his residence, and he told them the post was a joke. An airsoft rifle was found during a search of the home and officials determined the student had no access to actual firearms.

The student was reportedly taken into custody at a juvenile facility.