On one of the busiest weekends for air travel, passengers ran into a road block at one of the busiest airports in the world. A power outage at Atlanta's Hartsfield Airport are causing delays across the nation. A couple flights have been delayed to and from Shreveport after the power problem.

Hundreds of passengers traveling through the world’s busiest airport have been stranded in dimly lit terminals.

The Federal Aviation Administration said it was forced to hold back flights bound for Atlanta, while departures from the airport were also delayed and some planes were held at the tarmac.

International flights to Hartsfield were diverted to other Atlanta-area airports, U.S. Customs and Border Protection said on Twitter.

The flight control tower is working, but some flights out have been delayed because airport equipment in the terminals is not working.

You can check flight schedules for Shreveport by clicking here.

No idea yet what caused the outage. Georgia Power has crews on the scene trying to fix the problem.

A Delta Air Lines pilot told passengers a construction crew cut a power line, but an airport spokesman says they are not sure if that is the cause of the problem.

“We have not determined what caused it,” Andy Gobeil said in a statement to the Atlanta Journal Constitution.

So far, one flight departure from Shreveport Regional Airport is delayed and several others may be affected throughout the afternoon and evening depending on how long the delay is in Atlanta.

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