Around 2.30pm, the windscreen of a silver Toyota Landcruiser driving north along the Princes Highway at Nowra was struck by a object believed to be a rock as it neared Pleasant Way.

The projectile caused several cracks in the windscreen of the car. The 18-year-old man driving the car, and his a female front-seat passenger, were not injured.

Two youths, one wearing a blue hooded jumper and one wearing a black hooded jumper, were seen running from the underpass of the bridge, towards a nearby caravan park.

Shoalhaven police ere notified of the incident and commenced investigations.

As police continue their inquiries, they are urging any witnesses or anyone with information to come forward and contact them via Crime Stoppers.

Police are urging anyone with information in relation to this incident to call Crime Stoppers on 1800 333 000 or Shoalhaven police on 4421 9640