Orange Line: Delays of about 15 minutes due to police activity at Back Bay. Trains may stand by at stations. #mbtaalert #mbta

Green Line E Branch: Delays of about 15 minutes due to an earlier accident blocking the tracks near Riverway. #mbtaalert #mbta

Green Line E Branch: Service is suspended between Brigham Circle and Heath Street due to an accident blocking the tracks at Riverway. Passengers may use the Rt. 39 bus for alternate service. #mbtaalert #mbta

Blue Line: Delays of about 20 minutes due to a medical emergency at Orient Heights. Trains may stand by at stations. #mbtaalert #mbta

Green Line: Delays of about 15 minutes due to a disabled train near Haymarket. Trains may stand by at stations. #mbtaalert #mbta

Orange Line: Delays of about 10 minutes while signal maintenance was performed near North Station. #mbtaalert #mbta

Red Line: Delays of about 15 minutes due to a disabled train at Alewife. Trains may be held at stations. #mbtaalert #mbta

Green Line D Branch: Delays of about 15 minutes due to a disabled train at Woodland. Trains may stand by at stations. #mbtaalert #mbta

Red Line Braintree Branch: Delays of about 15 minutes due to a disabled train at Wollaston. Trains may stand by at stations. #mbtaalert #mbta

Green Line C Branch: Delays of about 20 minutes. #mbtaalert #mbta

Red Line: Delays of about 15 minutes due to a disabled train at Harvard. Trains may stand by at stations. #mbtaalert #mbta

Red Line: Delays of about 15 minutes due to a disabled train near Alewife. Trains may stand by at stations. #mbtaalert #mbta

Green Line: No trains between North Station & Babcock St (B), Kenmore (C+D), & Heath St (E) from Sep 26 - Oct 4. Use buses between Babcock, Kenmore, Heath St (Rt 39) & Copley/Back Bay. Use Orange Line between North Station & Back Bay. #mbtaalert #mbta

Green Line C Branch: Trains will skip Hawes St outbound from Oct 9 - Nov 7 while accessibility upgrades are being done. Riders can board/alight one stop away at either Saint Mary’s St or Kent St, which are 0.2-0.3 miles away (about a 4 - 6 minute walk) #mbtaalert #mbta

Orange Line: Delays of about 15 minutes due to earlier police activity at Back Bay. #mbtaalert #mbta

Red Line: Delays of about 20 minutes due to an earlier disabled train at Wollaston. #mbtaalert #mbta

Blue Line: To accomplish switch work at Wonderland, all trains will operate on the outbound/eastbound track between Wonderland and Revere Beach the weekend of October 3 – 4. #mbtaalert #mbta

Red Line: Delays of about 15 minutes due to a disabled train near JFK/UMass. Trains may stand by at stations. #mbtaalert #mbta

Red Line: Delays of about 15 minutes due to a disabled train at JFK/UMass. Trains may stand by at stations. #mbtaalert #mbta

Blue Line: Delays of about 15 minutes due to traffic at Bowdoin. Trains may stand by at stations. #mbtaalert #mbta