The Illinois Capitol building was placed on lockdown Tuesday afternoon after police received notice of a threat involving the location, according to Secretary of State Alexi Giannoulias.
The building was issued an "all-clear" approximately one hour later, according to BlueRoomStream.
In a brief statement on social media, Giannoulias said the Secretary of State police were notified of a threat involving the Capitol, which triggered a lockdown order for the building.
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Giannoulias added that police are currently conducting a sweep of the building "out of an abundance for caution." The specifics of the threat officials learned of are unknown.
There is currently no further information available.
