The accident occurred on the evening of September 14 in the Alnash region.
According to the traffic police, Kamaz collided with a semi-trailer, VAZ-2112 and Hyundai.
"As a result of the road accident, six people were fatally injured, including three minors born in 2003 and 2002," the department said.
At the end of June, URA.RU reported an accident on the Tyumen - Khanty-Mansiysk highway, which resulted in the death of a family of three.