Shuttle buses replaced trolleys along parts of three branches of the MBTA's Green Line on Monday morning. MBTA officials said the disruption was caused by a power issue at Kenmore Square at some ...

A train on the MBTA's Green Line collided with an out-of-service train at a station in Somerville early Sunday morning.

Just four months after a green line train derailed on its way into Somerville, two green line trains collided at the East ...

Federal regulators first recommended an anti-collision system for the MBTA's Green Line in 2009 and one contract for the MBTA's Green Line in 2009, but Sunday's crash between two trolleys at East ...

An MBTA Green Line train carrying passengers hit an out-of-service train at a station in Somerville, Massachusetts, early ...

Green Line train in Somerville, Massachusetts collided with another train, injuring five and prompting an NTSB investigation.