Police have appealed for witnesses after a concrete block was dropped on to a car from a bridge in Shropshire, injuring the driver.
The 23-year-old man suffered bruising to his ribs when a block was dropped from the Stafford Road bridge on the A442 in Telford at around 10pm on Thursday, West Mercia Police said.
The block smashed through his windscreen and landed on the back seat. He was able to pull over on to the hard shoulder and contact police.
Police condemned the "dangerous practice", which is potentially lethal can also lead to major disruptions and increasedcar insurance claims.
Officers are examining CCTV footage and are keen to speak to a lorry driver who was on the road at the time.
Chief Inspector Keith Gee said: "Throwing anything, especially concrete blocks, at passing vehicles is an extremely dangerous practice and could result in a serious road traffic collision and of course death.
"The driver on this occasion was extremely lucky he was not injured more severely and that he was able to keep control of his vehicle. It was also extremely lucky that there were no passengers in the car."
Copyright Press Association 2012