An outbound Green Line trolley crashed into the back of another outbound trolley on Commonwealth Avenue just past Agganis Arena shortly after 6 p.m.
The Boston Fire Department reported 23 people with injuries were transported to local hospitals. None of the injuries were considered life threatening.
The trolley on the left hit the trolley on the right:
B Line service was halted between Kenmore and Packards Corner. The T promised shuttle buses, but much of Commonwealth Avenue was shut as well around the crash scene, although some lanes were later re-opened.
After the trolleys were cleared, Transit Police unrolled police tape around the trolleys.