Police have charged three more people in relation to the death of a man whose body was dumped at McLaren Falls.

Ngaruawahia man Mitchell Paterson's body was found at McLaren Falls near Tauranga on July 13.

Three men, aged 33, 34 and 49, have been charged with being party to manslaughter - they have all been arrested as part of Operation Conga.

The 33-year-old and 49-year-old are due to appear in Hamilton District Court today.

The 34-year-old appeared yesterday and is due to next appear on August 7, says Detective Inspector Graham Pitkethley.

"The Operation Conga team continues to investigate the circumstances surrounding Mitchell's death.

"A 36-year-old man is already before the court on charges of murder and kidnapping as well as a 27-year-old man who is charged with being an accessory after the fact."

Police would like to thank the community for their assistance and encourage anyone with further information can contact Hamilton Police on (07) 858 6200.