MILL HALL — Before students began arriving at Central Mountain High School Monday morning, a suspected bomb threat led to a remote learning day.

This was the second incident related to a supposed threat the facility has dealt with after being placed briefly into lockdown on Friday. An investigation into that claim found it was unsubstantiated and the lockdown was lifted.

Keystone Central School District Superintendent Dr. Francis Redmon said the district received a report of a bomb threat on Monday morning at the school, located at 86 Keystone Central Drive, Mill Hall.

Redmon said the administration immediately contacted state police who conducted a thorough search of the premises. Meanwhile, it was announced students would have a remote-learning day.

In the afternoon, Redmon released a statement regarding the incident.

“(State police) determined that there is nothing on school premises to substantiate the threat,” he said. “Out of an abundance of caution, we shifted to a late-start remote day while law enforcement conducted searches of the CMHS buildings and the surrounding areas.”

Central Mountain Middle School students were also shifted to a remote day due to shared bus routes.

“The safety of our students and staff is paramount, and we take these incidents very seriously. We will be working with law enforcement to hold those making these threats accountable for the disruption and stress their actions have caused,” Redmon said in the statement.

He said students would see an increased law enforcement presence in the school while the threat is investigated.

Redmon further noted there was no evidence to indicate this incident was related to similar threats that were made at Pennsylvania College of Technology in Williamsport and Penns Valley School District in Centre County.

“We have no evidence that these incidents are connected to the threat to KCSD or CMHS,” he said.

Penn College issued a statement regarding an incident that occurred Monday morning in relation to a potential active shooter in the Keystone Dining Hall.

According to the statement, college police and emergency personnel responded quickly to the area and the campus was placed in lock down.

“No threats were found and additional campus areas were cleared,” the statement said.

Through an investigation of the 911 recording, Penn College said it was confirmed the campus was a victim of a “swatting” or prank call.

“Once confirmed, the shelter in place was lifted. Classes were cancelled for the day; campus remains open,” the statement said.

No information about an alleged threat made at Penns Valley School District could be found as of press time Monday night.