U.S. investigating FAA outage - Biden

STORY: Biden told reporters at the White House he had spoken to Transportation Secretary Pete Buttigieg and they should have a good sense in a couple of hours of what triggered the outage.

U.S. flights were slowly beginning to resume departures after Federal Aviation Administration (FAA) scrambled to fix a system outage overnight that impacted thousands of flight.

The FAA ordered airlines to pause all domestic departures after its pilot alerting Notice to Air Missions system went out. The FAA said departures were resuming at Newark and Atlanta airports "due to air traffic congestion in those areas. We expect departures to resume at other airports at 9 a.m. ET."