Power is restored at Phoenix Sky Harbor International Airport after a partial outage caused delays and flight cancellations at major airlines, a tweet from the Transportation Security Administration says.

The outage affected services at two terminals, with American Airlines Group Inc and Southwest Airlines Co experiencing “significant flight impacts,” the airport said on Twitter.

Southwest Airlines, which carries the most passengers at Phoenix Sky Harbor, canceled more than 68 flights and diverted another 10 to other cities, the carrier said. 

American Airlines, the No. 2 carrier at Phoenix, canceled 17 flights, with another 95 delayed.