A Japanese woman has been arrested after driving for four miles with the body of an 80-year-old pensioner lodged in her car windscreen.

Michiko Sato struck the elderly woman in the early hours of Sunday morning, but continued the drive to her home north of Tokyo.

Police called at the 23-year-old's home to find the body still sticking out of the car's shattered windscreen.

It was only when Sato's boyfriend reported the incident to the police that she was arrested.