UPDATE, 5:30 p.m. Problems persist - The Braintree-bound are being told to take any train they can jam into to JFK for a shuttle bus.
At South Station, Kate Birney reports:
just got pulled off braintree to alewife & routed to an ashmont car thatâ€™s not moving!
Erica Mattison adds:
Chaotic, packed Braintree Red Line becomes chaotic, packed Ashmont train. "Ugh" by conductor on loudspeaker says it all.
Mark Sauter advises:
Passengers close to rioting.
Jeremy Ackman captured the scene at JFK/UMass around 5:45 p.m.: