School was anything but unexpected for the students of Chino High School who were placed on a two and a half hour lockdown.
A 17 year old male student at the school posted a bomb threat on a social media website resulting in the authorities arriving on the campus.
According to KABC, this is third false threat of school violence.
The Chino Police Department gave the school an all-clear and arrested the two students involved in social media post.
The Chino Police Department would like anyone with further information about the incident to call the department at (909) 628-1234.