After almost four years on the run with his children, Ember, 9, Maverick, 10, and Jayda, 12, fugitive Tom Phillips' life came to a violent end during a stand-off with police on Monday.

He was killed in a roadside shootout near the rural town of Piopio, in New Zealand's Waikato region, after police intercepted him and Jayda on a quad bike following an armed farm supply store robbery.

When officers deployed road spikes, Phillips opened fire at close range, shooting one officer in the head and leaving him with critical injuries.

Backup returned fire, killing him instantly - all in front of his daughter Jayda.

Hours later, with Jayda's help, police tracked down a hidden bush campsite where Maverick and Ember were found alive.