Although three people had lost their lives, police were pleased it was much fewer than last year, she said.
The latest fatal crash happened yesterday evening at Morven, Canterbury, where two cars collided at an intersection on SH1.
The first person, a pedestrian, died near Napier on Friday after he was struck by a car on SH2 just north of the city's airport.
He was 22-year-old Jonathan Knuiman from Napier.
A teenager was killed Saturday afternoon when a car with five people inside went over a bank on SH35 north of Te Araroa on the East Cape.
A baby was also injured in the crash and flown to hospital.
Last Queen's Birthday weekend 11 people died on New Zealand roads. It was the highest toll for a Queen's Birthday weekend in 27 years.
However, although this weekend's road toll is lower, 2017 has been an overall deadlier year on the roads.
A total of 138 people have been killed on the roads as of June 2, 2017, higher than the 124 killed by the same date last year.