A van was captured on CCTV footage speeding the wrong way along Salisbury St in Christchurch before the driver was killed in a collision with a car, police said.
Canterbury Police are investigating two fatal car crashes in 24 hours on the weekend.
The driver of the van died around 11pm on Saturday and a woman died after a collision between a bus and car at the intersection of Colombo and Kilmore streets about 8pm yesterday.
Inspector Al Stewart said there have been 13 more deaths on Canterbury roads than this time last year.
"Police are extremely disappointed at the standard of driving across the district this year," he said.