CVG on Lock down

The Cincinnati Northern Kentucky International airport went on lockdown around 9:45 Sunday night because of security concerns.

The terminals were shut down, and the TSA wouldn't let anyone leave or enter the secured area.  Around 10:30, after reviewing a security tape, officials came to the conclusion a man was walking out of the security area, then quickly turned around and went back into the terminal.

Terminals re-opened after officials determined the man was not a threat.