Washington sources have stated that American airline company Delta on Monday said all its flights were grounded because of a global computer system outage and they have added that their systems are down everywhere, which the airlines has tweeted in response to disgruntled customers.


Meanwhile Delta has said that systems were back online by 8:40 a.m. ET, but has warned disruptions would continue amid a limited resumption of departures and their customers heading to the airport should expect delays and cancellations, while inquiries are high and wait times are long, as their customer service agents are doing everything they can to assist.


The CNN has quoted the airlines as saying that their passengers on Twitter has reported problems  including the inability to check in or being stuck on the tarmac  from airports around the world, including San Francisco and Athens.


Sources have stated that Delta serves nearly 180 million customers a year, employing over 80,000 personnel, according to its website, and it has its headquarters at Atlanta, in Georgia State of the US, and began in the 1920s as a crop dusting company.


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