Southwest Airlines, $LUV, confirmed all flights have been grounded across the U.S

Southwest Airlines, $LUV, confirmed all flights have been grounded across the U.S as of the morning.

This was a temporary problem.

“We have had to implement a ground stop as a result of intermittent issues that were experienced, and we should hopefully be resuming our operation as soon as possible,” a Southwest Airlines spokesperson said.

The Federal Aviation Administration gave Southwest the green light to resume flights an hour later — though planes heading into Dallas Love Field Airport were still grounded.

According to the FlightAware flight tracking website, some 2,500 Southwest flights — which make up around 30% of its schedule — experienced delays Tuesday morning.