New York -- United Continental has lifted its grounding of flights in the U.S. that were put in place earlier Wednesday morning due to computer problems.
"'We experienced a network connectivity issue this morning," the company said shortly after it happened. "We are working to resolve this and apologize to our customers for any inconvenience.
This is the second time in two months that the Chicago carrier has been hit by major technical issues.
United Continental Holdings Inc. had a temporary halt to all takeoffs in the U.S. on June 2 because of what the airline said were computer automation issues.
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