WORTHINGTON, Ohio (WCMH) — A Worthington high school is closed on Thursday after a staff member received an emailed bomb and shooting threat.

Worthington Kilbourne High School at 1499 Hard Road is closed after school officials discovered an email at 7:40 a.m. on Thursday that was sent overnight and contained threats to “bomb and shoot up” the school, according to Superintendent Trent Bowers. The high school is resuming after-school activities at 3 p.m. on Thursday and will resume normal activities on Friday with an active police presence.

“We could not, in good conscience, allow the school to remain open without working with local law enforcement who included the Columbus police counter-terrorism task force and Ohio’s branch of homeland security to verify the credibility of the threat we received,” said Bowers.

Bowers said the high school is working with the Columbus Division of Police to investigate the threat and that administrative staff have since swept all spaces in the school.

“Closing school like we did for a threat today invites the potential for more threats and it’s important that all Worthington families work with their children to understand the seriousness and consequences of threats,” said Bowers.

The threat against Worthington came hours before the Chillicothe Police Department was alerted at 1 p.m. on Thursday of a hand-written note containing threats of a bomb at Chillicothe Intermediate School.

After investigating, law enforcement determined the threat was not credible and a student responsible for creating the note said it was intended as a joke. Police said the student was removed from the school and criminal charges will be recommended to the Ross County Juvenile Prosecutor’s Office.

“Every threat is taken seriously, and swift action is taken to assess and address any situation,” said the Chillicothe Police Department. “We recommend every parent/guardian to have a conversation with their child about the consequences that can occur when making threats that could include criminal charges.”