US: Power outage at Atlanta airport, the world's busiest, grounds flights

A power outage at Hartsfield-Jackson Atlanta International, the world's busiest, ground operations to a halt Sunday. The FAA ordered a ground stop on flights, meaning planes are held at their departure points, the airport said. Flight-tracking site Flight Aware said departing flights were delayed by more than an hour. Delta Air Lines is diverting some Atlanta-bound flights and expected delays as a result of the loss of power, a spokesman said. The airline is based in Atlanta and the airport is its main hub. Southwest Airlines cancelled the remainder of its flights to and from the Atlanta airport Sunday. It was not immediately clear what caused the outage, but Georgia Power and the airport said they were investigating. The tower is still functional but equipment in the terminals is not working, the FAA said. <br/>