Classes at West Valley High School are operating normally Thursday after an anonymous threat against the school was discovered on social media.
The school is operating on a modified lock-down with additional authorities on campus throughout the day. The district is investigating along with the Yakima County Sheriff's office to find the source of the threat.

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Yakima County Sheriff's deputies are working with officials at West Valley School District after a threat was found on social media. The school was alerted this morning and are taking action. No arrests have been made and no injuries have been reported.
Authorities are checking to see if the threat has any credibility.