A reader reports 12:45pm: “Someone on the tracks of the red line between Judy square and union station. He’s walking.
Just shut down third rail power. The train stopped for a minute or so when he got on the rail, and the conductor starting shouting through the PA system to get off the rail. Before that they had the lights on in the tunnel and were following him at a walking pace as he walked along the rail. I didn’t see him on the platform, and he disappeared like 100 yards before getting to union station. It turns out he got out on the platform and went up and out onto Mass ave.