A tractor-trailer rolled over on the I-93 Southeast Expressway and pushed highway fencing onto the train tracks, causing major traffic delays and blocking service on the Red Line.
The fence near the tracks was damaged in the crash, which is causing “interference” on the right-of-way for Red Line trains, Transit Police said in a tweet.
The MBTA tweeted that shuttle buses have replaced service between JFK/UMass and North Quincy stations on the Braintree branch, “due to service being blocked.”
“Please expect delays as shuttles are dispatched,” the MBTA said.
Three right travel lanes are closed and the left lane is open on I-93 southbound by “mile marker 12” in Boston and first responders are on scene, MassDOT spokesperson Jacquelyn Goddard said.
Goddard directed the Herald to State Police, who are on scene, for information on injuries and further incident details.
A State Police spokesman did not immediately respond to a request for comment.
This is a breaking news story that will be updated.