Police are appealing for information from anyone who may have witnessed a serious crash that occurred on Saturday morning, at the intersection of Great South Road and Havelock Road, Ngāruawāhia.

The crash occurred around 9.15am on Saturday April 8, between a motorcycle and another vehicle.

One person was transported to Waikato Hospital where they remain in a serious condition.

"If anyone witnessed the crash or have CCTV or dashcam footage of the crash, Police would like to hear from you," says North-western Waikato Strategic Traffic Unit Sergeant Steven Jones.

Information can be shared via 105 – either by calling or going online to https://www.police.govt.nz/use-105 ‘Update Report'.

Please reference file number 230408/2376.

Information can also be provided anonymously via Crime Stoppers on 0800 555 111.