Delays are being reported on the Newburyport/Rockport Commuter Rail line and the Red Line due to "police activity" at North Station, the MBTA said Friday morning.
All Newburyport/Rockport trains will experience significant delays in both directions, the MBTA said. Inbound passengers can get off the train in Chelsea for a Silver Line connection.
The Red Line Braintree branch also experienced delays due to the police activity, but regularly scheduled service has since resumed.
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The MBTA did not release any information on what the police activity involved.