From the Southborough Fire Department:

The driver of a truck was transported to the hospital when two trucks collided Monday afternoon on Route 9 westbound at Flagg Road. The driver’s injuries were not life threatening.

Police, fire and EMS personnel responded to the crash at 1:54 PM. The crash had Route 9 westbound down to one lane for approximately one hour while the fluid spill was contained and the vehicles removed.

You can find more pictures on the fire department website.

(Photos courtesy of the Southborough Fire Department)