A 42-YEAR-OLD woman has been injured after a rock thrown from a footbridge smashed through the windscreen of her car.

The victim, who is an insurance clerk, suffered a broken collar bone, broken shoulder, fractures and facial injuries as the rock hit the silver BMW car in which she was a passenger.

The incident happened as the car passed under a bridge on the approach to the Dartford Crossing.

Police, who are investigating, believe it was caused by a rock or a stone being thrown from the footbridge, which crosses the A282 close to Bow Arrow Lane.

They are keen to speak to anyone with information about anyone seen throwing things from bridges and into the path of traffic in recent weeks.

PC Paul Clements, who is investigating the incident, said: "It is just such a dangerous thing to do. This woman could have been killed. As it is she suffered severe injuries and the car she was travelling in extensive damage."

The incident happened at around 11.30am on October 21 - the victim was travelling with her husband from Brighton to West Yorkshire where they live.

If you think you can help, or have information about who may be responsible, call PC Clements at Gravesend police station on 01474 565097.