12.30pm Update: State Highway 29A is now clear following a crash involving two cars.

The crash occurred at the intersection between SH 2 Sandhurst Dr to SH29A Westbound.

One lane was blocked while a tow truck was arranged.

Earlier, 11.30am:

NZTA advise that due to a crash near the State Highway 29A intersection, the left lane is blocked.

The crash occurred at the intersection between SH 2 Sandhurst Dr to SH29A Westbound.

Drivers are advised to pass the scene with care and expect delays in the area.

Police were alerted to a crash involving two cars on State Highway 29A at 11.20am.

SunLive readers report that it appears to have been a nose-to-tail type crash.

There are no reported injuries but one lane is blocked and a tow truck is reportedly needed," says a Police spokesperson.

At the scene? Phone 0800 SUNLIVE or email newsroom@thesun.co.nz