A large fire that started at a homeless encampment under the Boston-side of the Massachusetts Avenue Bridge shut down the structure for a couple of hours on Thursday.
Photos of the scene showed heavy smoke and multiple units responding to the blaze.
No injuries were reported in the fire.
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Officials tweeted a warning of the closure just after 11:05 a.m. Storrow Drive reopened around 11:30 a.m.; however, the bridge remained closed in both directions until it could be inspected by MassDot engineers.
Just before 1 p.m., state police said the bridge had reopened with one lane open in each direction.