Police want to hear from anyone who may have seen a crash at the intersection of Great South and Havelock Rds in Ngāruawāhia, this morning.
One person was taken to Waikato Hospital in a serious condition after a motorcycle and another vehicle collided about 9.15am.
Anyone who witnessed the crash or has CCTV or dashcam footage of it is asked to contact 105 or go online to https://www.police.govt.nz/use-105 and reference file number 230408/2376.
Information can also be provided anonymously via Crime Stoppers on 0800 555 111.