The Maori King has been admitted to Waikato Hospital having suffered a heart attack early this morning.
A tribal source said King Tuheitia was rushed to hospital having suffered "quite a big heart attack" earlier today.
The person said it was unclear whether the King was conscious or not and what his current state was.
The Herald understands karakia will be held tonight for the king at Turangawaewae marae.
"We are just crossing our fingers and hoping for the best," the source said.