Monday morning, Delta Air Lines has grounded all flights and predicted widespread cancellations after a power outage hit its computer systems globally, disrupting the travel plans of thousands of travelers.
The Atlanta-based airline said in a statement that the outage began at around 2:30 a.m. Eastern. Flights which were already en route were operating normally, but many passengers took to Twitter to express frustration with being stuck on the ground.
“We are aware that flight status systems, including airport screens, are incorrectly showing flights on time,” the company said in a statement. “We apologize to customers who are affected by this issue, and our teams are working to resolve the problem as quickly as possible.”
Airline data company Flightaware said there were at least 858 cancellations and 7,359 delays across the global industry on Monday morning. It’s unclear how many are related to Delta’s problems and whether Delta’s groundings are reflected in the numbers.
Computer outages have caused major headaches for airlines and travelers before. Southwest Airlines was forced to cancel more than 2,000 flights across the U.S. last month after technology problems prevented many travelers from checking in or boarding flights.