US air travel disruptions continue as FAA ground stop causes thousands of flight cancellations and delays, with cause still unclear. Read more at straitstimes.com.

A router malfunction in the FAA communications system triggered widespread flight cancellations and delays across the United States. The disruption renewed scrutiny of ageing air traffic infrastructure and demands for additional modernisation funding.

The problem was traced to FAA contractor L3Harris' installation of at least one new router at a remote facility.