One person was critically injured in the crash, which closed the highway for seven hours.

NZTA says drivers need to avoid the area as no estimate for when the highway will reopen.

One person was critically injured in the crash, which closed the highway for seven hours.

One person has been treated for moderate injuries.

Man stunned as truck, car crash head-on before smashing into him, blocking SH1 for hours.

One person has been treated for moderate injuries.

Initial reports suggest there are serious injuries from the two-car crash.

Two others sustained injuries in the two-vehicle crash early this evening.