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The (MPD) reported Friday morning that it had sent over a large response team at Marysville Pilchuck High School (MPHS) while the school was under a lockdown.

According to the school, all students and staff are safe. There was no shooter on campus, according to ³ÉÈËXÕ¾ Newsradio.

“At no time did we find anybody on campus that shouldn’t be there,” Marysville Police Commander Robb Lamoureux said. “We did not find any weapons there. We did not come across any threats to students or staff.”

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We have a large police response at Marysville Pilchuck High School. The school is in lockdown.

Officers are actively searching the school after a threat was called in.

Please keep all 911 resources open. Further information will be provided here when available.

— Marysville Police (@MarysvilleWAPD)

During MPD’s investigation, the department learned that the 911 call was a voiceover internet protocol call out of California. MPD believes it is very likely the call was a swatting call —  an act of criminal harassment by deceiving an emergency service into sending police or an emergency service response team to a certain location.

According to Lamoureux, the phone call indicated that there was an active shooter at MPHS.

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“Out of an abundance of caution, MPHS is currently on lockdown due to a reported safety concern,” the school wrote in a press release on social media. “Law enforcement is on-site and investigating the report. We will provide an update as soon as possible. Again, all students and staff are safe.”

Yesterday was the 10-year anniversary of a shooting at MPHS.

Police are asking the public to keep 911 lines open for emergencies only.

This story is developing. Check back for updates.

Contributing: Steve Coogan, MyNorthwest

Frank Sumrall is a content editor at MyNorthwest. You can read his stories here and you can email him here.