Headed to a convention in California, students from Barbizon Modeling School in Atlanta, including (front left to right) Luisa Restrepo, Brian Welch and Jeremiah Davison, relax in the baggage claim area of Atlanta Hartsfield-Jackson International Airport after a snow storm on January 10, 2011 in Atlanta, Georgia. Atlanta Mayor Kasim Reed and Georgia Governor Sonny Perdue declared a state of emergency because of snowfall and ice across Atlanta and Georgia. A winter storm stretched across the Southeast as freezing rain and sleet followed on the heels of a heavy snow that blanketed the region. The students from Barbizon had all their possible flights cancelled to Los Angeles and had been at the airport for the last 24 hours waiting for a flight. Airtran & Delta cancelled all flights out of Atlanta due to icy and snowy weather conditions. (Photo by Jessica McGowan/Getty Images)

ATLANTA (AP) — The tick-tick-ticking sound of a bag alarmed employees at the world’s busiest airport, but it turned out to be nothing more than a passenger’s battery-powered toothbrush.

The sound led to fears of a bomb at Atlanta’s airport Friday morning. Police cordoned off part of the north terminal while a bomb squad responded.

Airport spokeswoman Myrna White says AirTran employees heard the ticking sound after the bag was dropped off at the airline’s kiosk.

White says normal operations resumed within an hour.

Copyright 2013 The Associated Press.