BOSTON (CBS) -- Two manhole covers exploded into the air as a result of a fire in downtown Boston.
Firefighters were responding to a blaze near Boston's City Hall on Sunday when an explosion shot off two manhole covers.
One even flew 50 feet into the air.
One of the covers landed just a few feet away from a first responder.
No Injuries were reported.
An underground cable failure was to blame.
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