BOSTON (WHDH) - An MBTA network outage caused delays, knocked out countdown clocks, and disabled real-time predictions online and at stations across the Bay State on Monday.

Train service was not impacted by the outage but the MBTA says the issue caused gaps in service and late departures out of terminals.

“Our teams are working hard to resolve this as quickly as possible,” the MBTA said in a tweet that was sent out around 2:30 p.m.

An unexpected outage that hindered operations at the MBTA control center is thought to be the cause of the disruption, officials said.

The MBTA’s backup control center was activated and used as the communication and operation hub for the subway lines are as experts worked to rectify the issue.

The outage has since been resolved but some commuters had to deal with residual delays.

This is a developing news story; stay with 7NEWS for updates online and on-air.

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