Delta Air Lines Inc said it was cancelling nearly 250 flights on Tuesday as it looks to restore operations after a power outage hit its computer systems on Monday, causing the cancellation of about 1,000 flights.

"We were able to bring our systems back on line and resume flights within a few hours yesterday but we are still operating in recovery mode," Delta said in a statement on Tuesday.

An outage hit Delta's computer systems on Monday, grounding planes and stranding passengers of one of the world's largest carriers at airports around the globe. – Reuters