Police have closed State Highway 25, Pipiroa, Hauraki, following a serious single vehicle crash.

Police were first informed of the crash at approximately 6.40pm.

Wansbeck Street, Oamaru is closed at the intersection with Awamoa Road following a crash.

Emergency services were called to the crash involving a car and a motorbike just before 2pm.

Red Hills Road in Massey is blocked as Police are responding to a serious, two-car crash. 

The incident was reported around 11.30am.

The Serious Crash Unit have been advised.