File Photo – Gurnee Police Department | Photo: Woo-Sung Shim / Lake and McHenry County Scanner

Schools and local businesses were placed on lockdown Friday morning after police responded to a report of an armed person in Gurnee, authorities said.

The Gurnee Police Department responded around 11:05 a.m. Friday to the 100 block of Minthaven Court in Gurnee.

Gurnee Police Department Public Information Officer Shawn Gaylor said a call was received about an altercation involving a weapon.

Officers were dispatched to the scene and conducted a thorough search of the area.

Local businesses and schools were notified and implemented soft lockdown protocols, Gaylor said.

The Warren Township High School said they were told an armed robbery had been reported nearby.

The administration issued a shelter-in-place at the O’Plaine Campus out of an abundance of caution, the school said. A soft lockdown was also issued for Viking Middle School.

A “shelter-in-place” is a form of soft lockdown where the exterior doors are locked, students remain in the school and no visitors can enter.

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“We are not aware of a direct threat to our school or our students,” the school said in a statement. “We are working closely with law enforcement but do not have any information we can share regarding the community incident.”

The lockdown was lifted as of 12:10 p.m. Friday, the school said in an update.

The police search of the area resulted in no individuals connected to the altercation being located.

Gaylor said the update was communicated with the affected businesses and schools and the soft lockdown measures were lifted.