The road toll for the year stands at 318 - more than 40 higher than the 2011 tally.
Last year saw the lowest toll in 50 years, with 284 killed on the nation's roads.
Four people have died during this holiday period, which started at 4pm on Christmas Eve and will finish at 6am on Thursday.
On Friday, a 22-year-old man was killed at Ngapara, near Oamaru. Police said the man lost control of his car which slammed into a tree. Preliminary inquiries indicated speed and alcohol were major contributing factors in the crash.
Just after midday on Christmas Day the first fatality was recorded when Chinese national Rongmei Wang was killed in a two-car collision in Hamilton.