An exterminator is being brought in to treat the problem, district officials said.
The WPIAL is probing the allegations following a Pittsburgh Public Schools complaint.
The threat was made Friday afternoon, officials said.
The semi-finalists names were announced Wednesday.
The threat was issued early Wednesday.
The lockdown will be in place all day Friday.
State Auditor General Eugene DePasquale says the district has been unable to justify its skyrocketing travel costs.
Twenty-three southwestern Pennsylvania districts were ranked among the state's top 100 in a new study.
The Keystone Exams are needlessly costing taxpayers tens of millions of dollars, Auditor General Eugene DePasquale says.
The report comes as debate over how to handle student debt is being discussed among Democratic presidential contenders.
Here's your Patch guide to navigating the holiday before the fireworks.
Find out here where the Steelers and Eagles ranked in the new Emory University study.
More Than A Dozen Allegheny County Students Are Part of Reach Cyber's Monumental First Graduating Class
Find out here how your local high school compares to others in and around Pittsburgh.
Anthony Hamlet's handling of district affairs is being scrutinized by city and state officials, as well as the city school board.
Find out here who won the prestigious $2,5000 National Merit Scholarships.
Find out here if anyone from your child's high school was nominated.
US News & World Report released its annual list of best high schools in the country. See how the Pittsburgh Public Schools fared.
In an interview last week, the talk show host disparaged the school located about an hour north of Pittsburgh.
He was one of only two people in the world not to miss a question on the AP statistics exam.
He's returning to his alma mater to speak at the university's upcoming graduation ceremony.
Authorities are investigating the source of the odor.
The university is pledging a dollar-for-dollar match beginning with the 2019-20 school year.
The region's largest school district didn't delay or cancel classes despite Wednesday morning's treacherous conditions.
Find out here when the Strip District campus closes for good.
Find out here how many western Pennsylvania colleges and universities are on the list.
Find out here how the cancellation impacts the rest of the week's schedule.
Police are on the scene at the high school.
Students attending next week's special performance also will get to interact with cast members.
The modified lockdown will be in effect Friday, district officials announced.
Security at the school will be increased for the remainder of the week.
The school district where the threat was made is on a modified lockdown.
The weapon reportedly was an AR-15 semi-automatic rifle similar to the one used in the February school shooting in Florida.
Are teachers in Pennsylvania paid enough? What would you like to tell Pennsylvania lawmakers about teacher salaries?
Parents had protested the proposal to provide weapons to district officers.
Nonprofit Celebrates 20 Years, Sets Goal to Serve 3 Million Children by Winter
Collaboration Expands on 12 Year Relationship Supporting Low-Income Kids
Find out here how some local school districts are ramping up anti-bullying efforts this month.
Which degree gives students the most bang for their bucks? A new study offers answers.
Students at the school have been advised to seal their clothing in a plastic bag.