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7:44 p.m. — DIA officials say the “security concern” that disrupted screening gates as well as trains to concourses and terminals has been resolved. All operations are returning to normal, but there may be some delays.
7:22 p.m. — Security screening and trains to the gates at DIA have stopped while airport officials investigate what they call "a safety concern."
Security screening and trains to the gates and terminal have temporarily stopped while we investigate a safety concern. More information will be provided here. Thanks for your patience!— Denver Int'l Airport (@DENAirport) April 4, 2019