Four people died and six were critically injured in the first 24 hours of Waitangi weekend.

Three people are critically injured after a serious crash in Karangahake Gorge - the second crash in the same spot today.

A series of crashes have left four people dead this Waitangi weekend.

The crash happened about 9pm yesterday and the rider was taken to hospital in a serious condition.

A 23-year-old man is dead after being flung from a vehicle in a crash early this morning.

In a haunting case of deja vu, two of the families scarred by Sunday's horror crash were involved in an accident with eerily similar circumstances two decades ago.

A man suffered serious chest injuries in a four-vehicle crash in Waikato late this afternoon.

Passengers left standing on the roadside looking dazed and confused.

Update: Traffic is now flowing at Oteha Valley following the crash.

WATCH: An Auckland man has footage of a driver who damaged his motorcycle in a hit-and-run incident - and he wants your help to identify him.

An elderly woman who fell asleep at the wheel veered off a road and crashed in to a ditch in Hawke's Bay.

A tourist driver's failure to give way is the likely cause of a crash at an Oamaru intersection today, police say.

A tourist driver is facing two charges of careless driving causing injury after a head-on crash near Queenstown.

A Featherston father believes his daughter stole car keys then gave them to a group of teens, but says she has been forced to leave town for her safety.

More than 20 drunken teen surround house, smash windows and scream abuse at girl they blame for car smash deaths.

Two children injured in a crash in which their mother died remain in hospital. Firefighters related to the family were devastated when they responded to the crash.

Two people escaped serious injury after their car went down a bank on Piha Rd near Piha Beach in northwest Auckland tonight.

A man charged with drink-driving causing the death of a friend in a crash near Hastings last year had almost three times the legal limit of alcohol, police say.

Two teenagers have died after the vehicle they were in fled from police and crashed into a light-pole in Masterton's town centre.

One person is dead and another fighting for their life after a car crashed into a bridge in Northland this afternoon.

Four people suffered minor injuries after a crash at Gibbston near Queenstown this morning.

Five people have been injured, three seriously, after a police car and another vehicle collided south of Auckland this evening.

One person was trapped in a car after colliding with a Metrolink bus on Beach Rd about 7.03pm. No one on the bus was injured.

'A bang and a thud under the car' - couple describe narrow escape from their burning vehicle.

He received abdominal injuries and was flown with his mother to Tauranga hospital in a "moderate" condition.

In an already congested city, red light runners add needless delay to our intersections, forcing other drivers to wait and check before accelerating once lights turn green, writes Barney Irvine.

The boy was flown to hospital by helicopter with serious injuries after his bike and a car collided on the footpath on Stewart St, Raglan, trapping him underneath.

A 58-year-old woman suffered critical injuries after being hit by a runaway trailer while walking along the Taupo lakefront around 8am today.