Ground stop lifted, United Airlines flights set to resume

FILE - In this Tuesday, July 22, 2014, file photo, United Airlines jets are parked on the tarmac at Newark Liberty International Airport, in Newark, N.J. All United Continental flights in the U.S. were grounded Wednesday morning, July 8, 2015, due to computer problems. United said in a statement that it is working to resolve the problems, which are related to “network connectivity.” (AP Photo/Julio Cortez, File)

NEW YORK (AP) — United Airlines says domestic flights are on the move again after being grounded Sunday because of a computer problem.

Company spokeswoman Maddie King says the “IT issue” that initially caused the ground stop has been resolved and flights are resuming, but customers may experience additional delays. She didn’t give any more details.

It was not immediately clear how many flights were affected. The ground stop lasted about 2 ½ hours.

Chicago-based United Airlines and United Express operate more than 4,500 flights a day to 339 airports across five continents.