A hazmat team responded to Storrow Drive Sunday after an overheight truck carrying transformers struck the Longfellow Bridge near Charles Circle, forcing officials to shut down part of the busy Boston parkway.
Massachusetts State Police closed Storrow Drive eastbound at Charles Circle and Boston police have been diverting traffic since the 9:40 a.m. incident.
The hazmat team was called when it was discovered the non-hazardous transformers are leaking. Boston fire says it has contained the leak but a hazmat technician will remain on scene to supervise the cleanup.
Eversource is responding to the scene to evaluate the transformers.
There are no reported injuries.
Waste management company Clean Harbors is on scene to assist with the cleanup.
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Officials have no estimate on how long cleanup will take or how long that part of Storrow will be closed.