Flights across the United States resumes after overnight outage

NEWARK, N.J. (NBC, KYMA, KECY) - Normal air traffic operations were slowly resuming across the United States.

This comes after an overnight computer outage grounded thousands of flights.

The Federal Aviation Administration said its Notice to Air Missions system, which contains information essential to workers involved in flight operation, had "failed."

The White House said there was no evidence the outage was the result of a cyberattack. However, President Biden had instructed the department of transportation to do a "full investigation" into the cause.

Furthermore, FAA had to ground about 4,314 flights within, to and out of the U.S. at 9:05 a.m. Eastern time on Wednesday, according to the online flight tracker FlightAware.

It also added that the FAA had to cancel 737 flights.