A 15-year-old student at Keystone Heights High School was arrested Wednesday after he was accused of writing a threatening message on a bathroom ceiling, according to a Clay County Sheriff's Office arrest report.

The suspect initially told the school resource officer that another student had written the "I'm going to shoot the school up :)" message. However, administrators felt the suspect's claims were suspicious, according to the report.

The suspect was charged with two felonies.

He was taken to the Duval Regional Juvenile Detention Center without incident, according to the report.