At 7:30 a.m., airport officials say a computer software malfunction occurred on the automated shuttle trains that transport passengers between the terminal and the airport's three concourses.
DIA temporarily overrode their system to operate the trains manually.
By 8:45 a.m., trains were running again automatically.
DIA posted the following message to travelers Friday morning on their Facebook page:
"Head to the A-Screening Check Point. From there we will bus you to B & C concourses if that is where your gate is. There is a computer problem with the train system. It is working, but slowly. Thank you for your patience."
Airlines have reported that some people missed flights. DIA says those travelers should work with their airlines to reschedule flights.
Hundreds were impacted by the delays. Travelers at DIA say security lines at the airport were the longest they have ever seen.
For more updates, visit: http://www.flydenver.com/home.
(KUSA-TV © 2012 Multimedia Holdings Corporation)