Updated

German police say a woman has been seriously injured on the A7 autobahn near the border with Denmark after someone threw a soccer ball-sized rock at her car from an overpass.

Police told the dpa news agency on Wednesday that the 58-year-old German woman was on the highway near Harrislee in the northern state of Schleswig-Holstein when the rock was thrown through her windshield Tuesday night.

Police say the rock hit the woman and then rebounded back out of the vehicle.

She was able to pull over but suffered serious injuries and was taken to a hospital for treatment.

Police say earlier a rock was thrown at a truck from an overpass slightly farther south, but the driver was able to avoid it.

Further details weren't immediately available.