FBI Investigating Threat in Arizona

PHOENIX, Az - Authorities are investigating a threat involving one Southwest Airline 737 jet.

One plane involved in the investigation landed Tuesday night at Sky Harbor International Airport.

A Federal Bureau of Investigation spokesman confirms the Southwest plane in question was taken to an isolation pad away from the terminal where dozens of passengers were removed from the plane one by one to be screened.

The plane, Southwest flight 1184, arrived in Phoenix at 10:30 p.m. after departing from Orange County, California. The plane was bound for Tulsa, Oklahoma.

More