A second person has now died after a serious crash near Foxton - taking the road toll up to 10 in a span of four days.

Police confirmed the second death this evening.

Emergency services were called to State Highway 1, Foxton, after reports of a crash.

The road has been closed and a diversion is in place through Motuiti Rd. The serious crash unit is also at the scene.

Motorists in the area are asked to follow the directions of emergency services on-site, to expect delays, or avoid the area if possible.

The fatal incident takes the tally of road deaths to 10 from Friday morning until today.

Joshua Smith, 32, died when the car he was a passenger in collided with a motorcyclist in Sydenham, Christchurch, about 11am on Friday.

That night, Alexia Noble-Hazelwood was killed after the car she was in crashed into a school.

Four motorcyclists were killed in three separate crashes on Saturday afternoon.

The first happened at 12.45pm at Isla Bank, Southland. Two people died as a result and a third suffered critical injuries.

Another biker died at 3.20pm on Henderson Valley Rd, West Auckland, when a motorcycle ran into a ditch.

And just after 4pm, a fourth motorcyclist was killed on SH6 on the West Coast. Police later named the victim as Jayne Jamieson, 52, who had been taking part in a Pike River Memorial Run at the time.

On Sunday morning, a person was killed in a crash near Okere Falls in Rotorua. The crash happened about 7am and left another seriously injured.

Later that afternoon, about 4.30pm, another person was killed when two vehicles flipped on SH1 just south of Kawakawa.

The latest Ministry of Transport figures show 333 people had died on the country's roads as of yesterday in the year to date - five more than at the same time last year.

Last year 378 people died on New Zealand roads, the highest since 2009, when 384 people lost their lives. The next worst toll was in 2007 with 421 dead.

Earlier this year, 12 people died between August 27 and September 2.

At the time it was the fourth worst week on our roads this year - the worst occurring between June 25 to July 1 were 19 lives were lost.

The worst seven-day period since 1980 was in November 1985 and December 1997 when 31 people were killed on the country's roads, police said.