Atlanta (CNN) A power outage at the world's busiest airport left thousands of passengers stranded in dark terminals and in planes sitting on the tarmac, as a ground stop for Atlanta's Hartsfield-Jackson International disrupted air travel across the United States. The outage affected all airport operations. Georgia Power said the cause has not yet been determined, though it may have involved a fire that caused extensive damage in a Georgia Power underground electrical facility. More than six hours into the outage, power was restored to one of seven concourses. The utility said it expected full power to be restored by midnight.

Source: CNN December 17, 2017 19:41 UTC