Police are at the scene of a serious crash involving a car and truck, which has blocked Wairere Drive at Harrowfield, Hamilton.

The crash was reported about 2.30pm and happened between Pukete and River roads.

One person has critical injuries while several others are reportedly in serious condition.

The Serious Crash Unit is carrying out a scene examination and Pukete Bridge remains closed while emergency service work at the scene.

Members of the public are asked to avoid the area, and diversions are in place.

Manawatū Police Search and Rescue, Surf Life Saving New Zealand, and Coastguard New Zealand are urging people to remain vigilant and to be prepared when heading out on the water.

Sergeant Marcus Fellerhoff says over the summer there were eight incidents in the Kapiti, Horowhenua, and Manawatū coastlines that required emergency assistance.

“Early last week, Police Search and Rescue were alerted to a person in difficulty off Otaki Beach after falling from their kayak.