MBTA's Green Line Resumes Service After Power Problem Causes Morning Commute Chaos

Service has resumed on the MBTA's Green Line after a power problem caused chaos during the morning commute.

The Massachusetts Bay Transportation Authority said service was interrupted at about 8:30 a.m. Tuesday when a wire that carries 600 volts of electricity between Arlington and Copley stations sustained damage.

The T turned to shuttle buses along the affected Green Line routes, and broadcasters showed large crowds waiting for buses. The T also suggested commuters switch to the Orange Line.

Passengers on two trains had to evacuate inside tunnels and walk to stations.

One man tweeted video of commuters getting off a trolley that lost power in a tunnel.

All service was restored by about 11 a.m. The cause of the problem is under investigation.