Blue Line: Delays of about 10 minutes due to a disabled train at Airport. #mbtaalert #mbta

Red Line: Delays of about 15 minutes due to a power problem at JFK/UMass. #mbtaalert #mbta

Blue Line: Delays of about 15 minutes due to a signal problem at Maverick. Trains may stand by at stations. #mbtaalert #mbta

Green Line B: Delays of about 15 minutes due to a disabled trolley between Warren Street and Washington Street. Service may stand by at stations. #mbtaalert #mbta

Green Line C Branch: Delays of about 20 minutes due to an earlier disabled train at Coolidge Corner. #mbtaalert #mbta

Green Line: Delays of about 15 minutes due to a signal problem at Lechmere. Trains may stand by at stations. #mbtaalert #mbta

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

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

Red Line: Delays of about 15 minutes due to maintenance personnel on the right of way near Harvard. Trains may stand by at stations. #mbtaalert #mbta

Green Line E Branch: Service is suspended between Brigham Circle and Heath Street due to a possible gas leak near Fenwood Road. Passengers may use the Rt. 39 bus for alternate service. #mbtaalert #mbta

Orange Line: Delays of about 10 minutes due to an earlier track obstruction at Ruggles. Service is proceeding. #mbtaalert #mbta

Green Line: Delays of about 10 minutes due to police activity at Hynes Convention Center. Trains may stand by at stations. #mbtaalert #mbta

Orange Line: Delays of about 10 minutes due to a signal problem at Oak Grove. Trains may stand by at stations. #mbtaalert #mbta

Green Line: Delays of about 20 minutes due to an earlier derailment of a maintenance vehicle at Park Street. #mbtaalert #mbta

Green Line: Shuttle buses are replacing B, C, D & E Branch service between Haymarket and Boylston due to the derailment of a track maintenance vehicle at Park St. #mbtaalert #mbta

Orange Line: Delays of about 15 minutes while personnel address a signal issue near Mass Ave. #mbtaalert #mbta

Blue Line: Delays of about 10 minutes due to a signal problem near State. #mbtaalert #mbta

Green Line C Branch: Delays of about 15 minutes due to a disabled train near Summit Ave. #mbtaalert #mbta

Green Line: Delays of about 10 minutes due to fire department activity near Medford/Tufts. #mbtaalert #mbta

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