US lifts nationwide flight ground stop after hourslong disruption

“Domestic flights across the United States have been allowed to resume departures after federal officials lifted a nationwide ground stop that disrupted air travel for several hours due to safety conce…”
The suspension, which lasted more than four hours, caused widespread disruption at airports across the country, leaving an estimated 1.5 million passengers stranded, data firm Cirium. The ground stop forced aircraft already in the air to land while preventing planes waiting on the ground from taking off, resulting in flight cancellations and delays nationwide.
An airline source said the disruption originated from a problem involving network routers, which triggered a chain reaction affecting communications systems across the country. Homeland Security Secretary Markwayne Mullin said the suspension was not prompted by any threat to the United States.
He also clarified that the incident was not connected to the Microsoft outage reported earlier in the week. Meanwhile, law enforcement indicated the telecommunications disruption was not the result of a cyberattack. The nationwide ground stop was imposed as a precautionary measure over safety concerns arising from the communications failure.
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With the restrictions lifted, domestic airlines have begun resuming departures, although passengers may continue to experience delays and disruptions as airlines work to restore normal flight schedules.
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