LONDON, Ont. - Cove Road near Goderich, Ont. has reopened after it was closed overnight while police investigated a fatal single-vehicle crash.

The crash occurred around 7:20 Monday night on Cove Road at Beach Street.

Police say the driver of an SUV was found dead at the scene.

According to police the vehicle crashed down a steep embankment at the end of Elgin Avenue West and ultimately came to rest overturned in a treed area near Cove Road.

One witness to the crash says the vehicle that drove over the embankment was “travelling at a high rate of speed” as it hurtled off the cliff.

Police are currently trying to confirm whether this could have been an intentional crash or possibly a medical emergency that went terribly wrong.

A post mortem on the adult male driver is expected to be completed Tuesday.

OPP are appealing for any witnesses to the crash to come forward.

- With files from CTV London's Scott Miller