Plano Independent School District announced Monday that classes had been canceled on Tuesday due to a bomb threat on campus.
Plano ISD's media relations reports that a bomb threat was found written on the wall in a student bathroom at Plano East Senior High School on Friday and a second threat was received Monday.
"In both cases, Plano East implemented the district's safety and security plan and took immediate action and precautions. The plan has involved a thorough search of the campus, including use of the explosive detection canine unit, but no evidence of a bomb has been found.
Although neither threat has been deemed credible, in an abundance of caution, classes will be canceled for Tuesday, November 23. The cancellation of school will enable the district to completely sweep the building with the canine units. Plano ISD is continuing to work with the Plano Police Department to follow up on strong leads in both instances."
Late Monday Plano police reported a 17-year-old Plano East Senior High School student was arrested for terrorist threats related to Friday's bomb threat. He was arrested Monday afternoon and police said Friday's threat was not related to Monday's threat.
Plano ISD will continue to investigate in collaboration with the Plano Police Department to follow up on strong leads in the second case.
The district reports that while students are not required to make up school for Tuesday's closure, any subsequent time lost due to these types of threats will be made up.