United Airlines was forced to issue a ground stop for all flights nationwide due to a technical issue with its weight and balance computer system Wednesday evening. "Due to a technology issue, we are holding United mainline flights at their departure airports,

United Airlines flights on major routes were grounded Wednesday because of a technology issue, and additional flight delays were expected into the evening, the airline said.

The airline’s travel alert page notes that a technology disruption may impact flights to or from 14 airports including Newark, Washington, Los Angeles and Chicago.