Skytrain Back In Service After Derailment At Miami Int'l Airport

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MIAMI (CBSMiami) -- The Concourse D Skytrain at Miami International Airport is open and has resumed service.

Officials announced the trains and tracks have been inspected and tested, deeming them safe for operation.

Investigators are still looking into what caused the train to derail on Tuesday while a worker was doing maintenance. It stopped the service and forced travelers to walk from one end of the airport to the other.