A crash involving three tractor trailers closed Interstate 84 westbound in Union overnight.
Firefighters told Eyewitness News that a car may have lost control, which caused two tractor trailers to abruptly pull over.
As the trucks were trying to get away from the spinning out driver, one collided with another truck as they entered the road's shoulder.
State police said it happened around 3:45 a.m., which was well before Monday's snow began.
Troopers said it's unclear what led the initial driver to lose control.
They reported no major injuries despite debris strewn across the highway.
Cleanup continued as of 6 a.m.
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