Runaway truck causes 14 vehicle traffic pile-up in Russia

This is the terrifying moment a truck smashed into the back of a car, causing a 14 vehicle pile-up including a bus with 23 passengers.
The lorry driver lost control after a brake failure and rear-ended his vehicle near the city of Zhigulevsk in Russia.
Footage shows the car slamming into a van in front before turning into the path of a yellow truck.
The window shatters with the impact, sending glass showering onto the dashboard.
Four people were injured after the pile-up, although a group of children in one of the vehicles were unharmed.
The accident happened on April 27 and was filmed on dashcam.
It is not known whether police are investigating the incident or if any arrests were made.