Two teens were arrested in connection with an online threat at a Nevada County high school, authorities said on Wednesday.

A school resource officer with the Nevada County Sheriff's Office was alerted Wednesday morning of a possible threat involving a gun at Nevada Union High School.

Deputies said they immediately began investigating the incident and identified two teenage suspects.

One 17-year-old, who deputies said is a student at Nevada Union, was arrested for alleged criminal threats and conspiracy to commit crime, the sheriff's office said.

Another 17-year-old who is not a student at the high school was arrested for alleged conspiracy to commit crime, authorities said.

All students and staff are safe and deputies remained on campus through Wednesday afternoon.

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