UPDATED: Police are attending the scene of a serious three-vehicle crash at the intersection of State Highway 2 and Wairoa Road.
Two people were seriously injured in the crash, which occurred at about 4pm.
Another person has moderate injuries, and a fourth person has minor injuries, says a police spokesperson.
"State Highway 2 is completely blocked just west of the Wairoa Bridge.
"Diversions are being put in place; however, motorists should avoid the area as the closure will be in place for some time and there will be significant delays."
At the scene?
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A three car crash has closed SH2 in both directions.
A witness at the scene told SunLive "Road is blocked in both direction, diversion via Wairoa Road at State Highway 29. All emergency vehicles on scene"
SunLive will update this as more information comes in...