A little before 11 a.m., a Green Line passenger tweeted this photo with the caption, "Green Line train derails at Kenmore but staff at Copley station completely clueless about what is going on." Photo courtesy: @nils_gehlenborg /Twitter
An investigation is underway after a two-car outbound Green Line trolley derailed inside a tunnel near Kenmore Square around 9:45 a.m. Monday, forcing passengers to walk through the tunnel to be evacuated.
No injuries were reported, according to Boston Fire, though one passenger needed assistance evacuating.
Regular service was expected to resume at the start of service Tuesday, according to MBTA Spokeswoman Kelly Smith.
Regular service resumed on the C and D lines by Monday's evening commute, but the B line continued to utilize shuttle buses through the end of service.
Not surprisingly, several customers expressed frustration with delays.
Around 2 p.m., Green Line passenger Ben Heyman tweeted, “Hey #Boston – #MBTA Green Line is still an utter mess. Avoid at all costs.”
The Green Line is no stranger to accidents.
In March, 10 people were injured when a Riverside-bound trolley veered off the tracks, causing another trolley to stop short behind it. Dozens were hurt in November 2012 when a trolley crashed into another trolley at at Boylston Station.