One person is dead following a fatal crash near Whangarei tonight.

Emergency services have closed State Highway 1 in Oakleigh, Northland following a serious two-vehicle crash at an intersection.

Police said in a statement the incident took place where SH1 meets Springfield Rd and they were alerted around 5.50pm.

Diversions around the scene have been put in place for motorists, however, the public is asked to avoid the area.

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One person died in the crash and another suffered moderate injuries, police said.

"The road remains closed. Motorists are advised to avoid the area if possible."

NZ Transport Agency reports northbound motorists will use Salmon Rd, Springfield Rd, Mangapai Caves Rd; Mangapai Rd then back onto SH1.

For those heading south, the opposite detour route is advised to be used by motorists.

More to come.