A hay bale fell from a HGV with blue cab onto a grey Toyota Yaris on the A614 near Holme-on-Spalding Moor.
The Toyota Yaris was in traffic travelling towards Holme-on-Spalding-Moor when the HGV passed on the other side of the road and as it did so a hay bale fell onto the car.
The occupants of the car were not injured, however the car was damaged.
Humberside Police are trying to trace the driver of the HGV or anyone that witnessed the incident. Call 101, quoting log number 206 of 13/3/14 with information or call Crimestoppers on 0800 555111.