IPN reporting just sent out the follwing page
"MAS|Boston|S-SUB|Ashmont MBTA Station|BFD Units & EMS o/s Confirmed Susp Package w/ Poss Bio-Hazard on a MBTA Bus"
No other information has been provided, just from the wording of the page it sounds like it could be a drill.
www.incidentpage.net
IPN UPDATE
"MAS|Boston|HAZMAT|Ashmont MBTA Station|Package w/ Chem Labels Buldging & Leaking. It was left on a Bus. Now a Level 3 Hazmat."
www.incidnetpage.net