A traveler went the wrong way through a security checkpoint, entering through an out door at a closed checkpoint, according to Mike Conway, director of public affairs.
The incident happened at about 9:45 p.m. A TSA Agent triggered the alarm, following protocol.
A sweep of the building was performed as a precaution and an all-clear was issued at 10:48 p.m.
"Business resumes as usual, there are not a lot of flights this late," Conway said. "So there was not much of an interruption."
-Assignment Editor Jeffrey Kranitz contributed to this report.