Four people were killed in the Kirov region after a bulldozer toppled off the truck on which it was being transported and fell onto a passing car, local police said.
"During a right turn by the truck, a bulldozer fell from the trailer's platform onto an approaching Ford Focus car," police said in a statement on Sunday. "As a result of the road accident the driver and three passengers of the Ford car were killed."
The car's occupants were all from one family: The husband, wife, young daughter and father-in-law.
The accident took place on a stretch of federal highway in the Orlovsky district of the Kirov region. The truck transporting the bulldozer was likely to have been traveling too fast for the road conditions, according to police.
About 30,000 people lose their lives every year in Russian road traffic accidents, mainly due to the poor state of highway networks and reckless driving.