Please attribute to a police spokesperson:
State Highway 1 has reopened in both directions following a serious crash in Warkworth.
Three people, including a child, have sustained serious injuries and have been transported to hospital.
None of the injuries are believed to be life-threatening.
Traffic remains heavy in the area and motorists are asked to exercise patience.
The Serious Crash Unit is continuing its investigation into the incident.
ENDS
Nick Baker/NZ Police