MINNEAPOLIS (AP) — A massive string of flight delays and cancellations on Delta Air Lines should only affect Delta passengers at Minneapolis-St. Paul International Airport.

The Atlanta-based carrier said the disruptions were caused by a power outage that began early Monday morning, though it was unclear how that affected the company's global computer systems. It was also unclear how many flights were delayed or canceled in Minneapolis.

Airport spokesman Patrick Hogan said Delta travelers have been able to get boarding passes and go through security, easing any potential backups. He recommends that anyone with a Delta flight contact the airline directly to check on any potential disruptions.

By 8 a.m. Monday Delta said computer service had been restored and limited flights resumed.

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LONDON (AP) — Some Delta passengers say they received no notice of today's computer outage that caused the airline to cancel hundreds of flights worldwide, with more than 1,000 others delayed.

Passengers say they only discovered they were stranded after they made it through security and found other passengers sleeping on the floor.

About six hours into the outage, Delta said limited flights had resumed.

The airline says that a power outage at a facility in Atlanta at around 2:30 a.m. Eastern started the cascading meltdown.

Flights that were already in the air when the outage struck continued, but many flights remained grounded. Over the next several hours, only a handful of flights took off instead of the usual hundreds, according to flight-tracking services.