All flights in the United States are grounded until further notice, “due to extraordinary circumstances and for reasons of safety,” the Federal Aviation Administration said.
The reason for the ground stop was not immediately clear, but an FAA spokesperson said there is a communications problem impacting Air Route Traffic Control Centers, which handle flights going across the country. Preliminary reports indicate this is not a cyberattack, according to two law enforcement officials.
The last time there was a nationwide ground stop was in January 2023, when a pilot notification system went down. Prior to that, the last nationwide ground stop was issued after the September 11, 2001, attacks.
CNN
