NEW YORK (AP) — Air passengers were temporarily evacuated from a terminal at New York City’s Kennedy Airport after a problem at one of the security checkpoints.

The Port Authority of New York and New Jersey says that the Transportation Security Administration shut down Kennedy’s Terminal 7 at around 9:45 a.m. after determining that someone had gone through the checkpoint without being properly screened.

READ MORE: Paterson Community In Mourning After 18-Year-Old Honor Student Robert Cuadra Killed By Stray Bullet

Procedures call for the entire terminal to be emptied and the passengers re-checked whenever that happens.

READ MORE: NYC's Only Black-Owned Comedy Club Finds Success Amid Setbacks

One traveler posted photographs on Twitter showing the terminal lobby jammed with people waiting to get back in.

The terminal is used by British Airways, United, and other airlines.

MORE NEWS: Cutting-Edge Procedure Using Stem Cells Seen As Way To Avoid Hip Replacement Surgery

(Copyright 2012 by The Associated Press. All Rights Reserved.)