Police have opened a first-degree terroristic threatening investigation after Kalani High School received a threat made against the school Wednesday afternoon.

A police presence and an increased security staff were also expected on campus today in response to the threat.

In a letter sent to parents and guardians, principal Mitchell Otani said, “All threats to our school or students are taken very seriously and are investigated thoroughly.”

Penalties for terroristic threats range from detention to possible arrest and criminal charges.

“The safety of our students is a major priority and we are committed to providing a secure campus,” Otani said.

There are no arrests at this time.