Several saw the snow plough coming and fled in the city of Petropavlovsk-Kamchatky.
But a 43-year-old woman was hit with reports saying she was killed when she was cut in half by the vehicle as it crashed into a garage near a shopping centre.
The moment was caught by a dash cam of a passing vehicle.
“Cut in half – I was there when she was still in agony,” the voice of a witness heard saying.
“It was a terrible sight.”
Police in Kamchatka region confirmed the woman had died on the spot from her injuries.
The 33-year-old driver of the snow plough is under investigation over the incident.
Reports said it was not known why he had “lost control” of the vehicle.