Computer Glitch Grounds Delta Air Lines Flights

ABC News' David Kerley reports on the latest developments from Reagan National Airport in Washington, D.C.
2:04 | 08/08/16

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Transcript for Computer Glitch Grounds Delta Air Lines Flights
But first that breaking news, delta flights grounded worldwide overnight. Some frustrated travelers sharing these photos of some long lines right now and delta now saying, there you see it right there, that the delays are due to a global computer outage. ABC's David Kerley is at Reagan national airport with the latest. Good morning, David. Reporter: The latest and the long line, George. Tens of thousands of passengers are being affected. Here's just one line national airport, Reagan national airport. The line here, no delta jets are taking off. This computer outage started overnight. It is continuing at this hour. If a delta jet is in the air it will continue and land but nothing is taking off from the ground. There was a passenger in Sacramento who sent us an audio file of the pilot explaining what happened overnight. Back in our operations control center in Atlanta, a huge room, the center of the whole operation, their computers are down and if you've been trying to call and get rebooked or call the diamond desk or anything, it looks like everybody is in the same boat. Reporter: Delta says in a statement a computer outage has impacted flights and is advising travelers to check the status of their flights this morning while the issue is being addressed. But there is no solution so far. Delta now joins the other major carriers that have been hit by computer shutdowns. A year ago united had nearly 5,000 flights affected. Just last month southwest canceled 2300 flights. This looks like it could be a lot worse, George. It is morning, it is rush, it is Monday and no delta jets are taking off around the globe. Yeah, and, David, I think most of us assume there's some kind of failsafe mechanism in place but this is affecting every flight all over the world. How could that be? Reporter: Yeah, delta is not being specific exactly what happened with their computer system but all this information is critical to pilots. They need to know weather data, how many people they're carrying, dispatchers have to know weights. All these things are reliant on computers. A system goes down, you're not flying. Ripple effects everywhere. David Kerley, thanks very much.

This transcript has been automatically generated and may not be 100% accurate.

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