The young woman who died yesterday when her vehicle skidded out of control on black ice and hit a school bus has been named.
She was 28-year-old Charlotte Christina Armstrong from Little River.
Police said Ms Armstrong's death has now been referred to the coroner.
Ms Armstrong was driving her Toyota Surf towards Christchurch on State Highway 75 Christchurch-Akaroa Rd shortly after 7.30am when she lost control crossing McQueens Bridge at Gebbies Valley.
Sergeant Paul Piper said early indications were that she had encountered "a large patch of black ice and has spun into the path of a school bus travelling in the opposite direction".