False fire alarm empties U.S. airport

CINCINNATI, Dec. 26 (UPI) -- A terminal at the Cincinnati/Northern Kentucky International Airport was evacuated Monday after a fire alarm went off, an airport spokeswoman said.

Barb Schempf said the airport's Terminal 3 was cleared about 7:30 a.m. and was reopened about an hour later when investigators determined there was no fire, The Cincinnati Enquirer reported.

All passengers who were evacuated had to go through security procedures again but delays were limited to about 15 minutes in line, Schempf said.

Schempf said was unclear why the alarm sounded.