Update: Boundary Street has reopened.
Grenville County OPP say officers responded to a motor vehicle collision, involving a pedestrian today.
The collision happened on Boundary Street, at the CN railway tracks, in Prescott. A single motor vehicle struck an adult pedestrian, according to OPP.
Police say the pedestrian was transported by Air Ornge, with serious injuries. The driver was transported to hospital with non-life threatening injuries.
Boundary Street is currently closed to traffic. This investigation is currently in progress and no further details are available, according to police.