The international cyberhacking group Anonymous Sudan claimed credit Friday for website outages that hit Sandy Springs-based UPS and Hartsfield-Jackson International Airport early Friday morning.

Both websites were back up within a couple of hours.

Anonymous Sudan posted messages on Telegram Messenger, taking credit for disrupting both website and said it would target other U.S. airports, education, businesses and government.

UPS apologized to its customers just before 5 a.m., in response to questions from people trying to track or ship packages. The company said its website was fully recovered by 7:01 a.m.

UPS issued a statement saying it “experienced a relatively brief disruption to some services on our website,” and added that there was “no impact to our operations globally.”

“We are investigating to determine the root cause,” UPS said.

It’s not the first time the company has had a website outage. The company had widespread intermittent problems with its website in 2012, and two years ago a major internet outage affected about 24,000 websites, including UPS.

Hartsfield-Jackson’s website, which went down early Friday morning, was back up by 8:30 a.m.

Hartsfield-Jackson’s website was one of a number of airport websites hit by outages last October, also blamed on a hacking group‘s targeted attacks.

The latest website outage did not affect airport operations. Some travelers use Hartsfield-Jackson’s website for information on airport parking lots and concessions, along with links to security, wait times and other resources.