The FAA has halted all flights across the United States following a communication outage at air traffic control. The agency cited extraordinary circumstances and safety concerns as the reason for the nationwide ground stop.

The FAA announced the decision after identifying a disruption in communication systems that affects air traffic controllers' ability to coordinate with pilots. The ground stop applies to both domestic and international flights, with no immediate timeline for resumption. Airlines have been instructed to monitor FAA updates and adjust schedules accordingly.

This is the second time this year the FAA has imposed a national ground stop. The previous incident occurred in March, when a similar communication issue led to the cancellation of hundreds of flights. The FAA has not yet released details on the cause of the current outage, but officials are investigating potential technical failures in the system. The situation highlights ongoing challenges in maintaining reliable air traffic control infrastructure.