Officials with District 11 say a threat toward Doherty High School Wednesday morning was not credible. The school was placed on secured perimeter status out of an abundance of caution, but it was lifted by 1 p.m. Meanwhile, D-11 says, in addition to Wednesday morning’s threat, there have been more “generic threats” circulating on social media that weren’t targeted at a specific school. In addition, D-20 officials say they received threats at Liberty and Rampart High Schools Tuesday, and following an investigation, they were both deemed not credible.