File Photo | Photo: Warren-Newport Public Library

The Warren-Newport Public Library in Gurnee has once again reopened after it was evacuated Monday following its second bomb threat in recent days, police said.

The Gurnee Police Department responded around 12:30 p.m. Monday to the Warren-Newport Public Library, 224 O’Plaine Road in Gurnee, for a bomb threat.

The library received the threat through email, police said.

The library staff immediately evacuated the building and officers set up a perimeter.

A search of the building was completed by explosive-detecting canine units from Allied Security.

Canine Harley and Handler Baily along with Canine Lia and Handler Taft determined there were no explosive devices.

The building was deemed safe but remained closed Monday. The library reopened Tuesday morning.

On Thursday, the library said they received a bomb threat around 6 p.m. through their chat reference service.

Library staff followed their emergency procedures and immediately evacuated the building.

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The Gurnee Police Department and an Allied Universal canine unit responded to the scene.

An extensive search was conducted but no devices were found in the building, the library said. The library reopened Friday morning.

“WNPL would like to express our gratitude to the Gurnee Police Department and Allied/MSA K-9 Unit for their prompt response to this incident,” the library said in a statement Monday.

A number of other local libraries in the Chicagoland area have also received similar threats in the past week.

Police say an investigation into the origin of the threats is ongoing.