Three people were injured on Wednesday when a large metal object fell off a tractor-trailer on I-90 eastbound in Millbury.
According to State Police, Anthony Donaldson, 48 or Roslindale, was traveling eastbound in a 2011 tractor-trailer when the object fell from the trailer, striking a 2010 Subaur Legacy, which was also traveling eastbound at the time.
As a result of the impact, the driver of the Legacy, a 59-year-old man from Wilbraham, and two adult passengers were transported to UMass Medical Center in Worcester for treatment of minor injuries.
Donaldson, who had initially not stopped at the scene, was charged with leaving the scene of a personal injury crash and a left lane violation.
State Police determined the load on the tractor trailer was improperly secured.
The company that owns the truck, Instituform Technologies of Chesterfield, Mo., was issued a federal motor carrier safety administration violation for having an improperly secured load.
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