CHICAGO (CBS) — Addison police shot a person armed with a knife, after they ignored orders to drop the weapon, as officers were responding to a domestic disturbance Thursday morning, police said.

Shortly before 4:30 a.m., Addison police officers responded to a domestic dispute on the 200 block of Mill Road. As they entered the apartment, they saw a person with a knife, and ordered them to drop the weapon.

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Police said the person came at the officers with the knife, and one officer shot the suspect.

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The person’s condition was not available Thursday morning.

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The DuPage Major Crimes Task Force was investigating the shooting.