Northwestern University's Chicago campus law school building is no longer on lockdown.

The Rubloff Building, which houses the law school library, had been put on lockdown Wednesday morning after reports surfaced of a man with a gun in his waistband inside the building.

People inside the building are no longer required to stay behind locked doors. Law classes will continue and people are allowed to move about the building.

Police are continuing to investigate. No suspect was found.

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