Firefighters are battling a "well-involved" house fire near Ngaruawahia.

Auckland is like a big sister, stealing all the pocket money and commandeering the new colouring-in pencils until the lead is broken in a dozen places.

Police are asking the public to help them find a vehicle connected to an aggravated robbery at a home in Ngaruawahia this afternoon.

Four people escaped with minor injures after a single-story home in the Waikato caught fire.

Police are investigating an aggravated robbery at a grocery store.

A suspicious blaze in a 100-year-old school building follows six previous incidents of vandalism since March this year.

Firefighters have been working to contain a poisonous gas leak at a meatworks near Ngaruawahia this morning - the second at the company in less than a fortnight.

A WW II Grenade has been detonated in Waikato after being found by children yesterday.

A member of the public is being praised for rescuing a man from a brutal robbery and assault on the streets of Ngaruawahia early on Friday.

Two Waikato women stepped in and stopped a man who was kicking his partner in the head on a Ngaruawahia street on Sunday night.

Sergeant Juliet Burgess of the Huntly Strategic Traffic Unit said emergency services were called to a 100km/h stretch of SH1 by the intersection with Kelm Rd about 5.18am.

A Ngaruawahia man is to undergo a psychiatric evaluation after he was charged with attacking three men with a meat cleaver, putting all of them in hospital.

Ngaruawahia locals say they've been targeted for standing up against child abuse after the death of a baby.

The grandmother of a six-month-old who died a violent death says someone needs to come forward with the truth.