Police have made further arrests in connection to the death of Hamilton man Sao Young.​

Young, 40, was last seen on the evening of March 12 in Hamilton's Insoll Ave area and police believe it was on that night he was killed.

After he was killed, his body was then allegedly taken to a rural property in Ballard Rd in Gordonton, where it was discovered by a farmer, nearly a month later on April 13.

A 20-year-old woman appeared in Hamilton District Court on Thursday charged with being an accessory after the fact to murder, two charges of kidnapping and a further two charges of wounding with intent to cause grievous bodily harm.

Another woman, aged 34, was arrested on Thursday and will appear in Hamilton District Court on Friday charged with manslaughter and kidnapping.

A 24-year-old man has already appeared in court charged with Young's murder. He was remanded in custody and is due to reappear in the Hamilton District Court on October 6.

Detective Inspector Graham Pitkethley​ says officers are continuing to investigate Young's death and did not rule out further arrests.

Information can be provided to police by calling 105 and quoting file number 200413/6113.

-Stuff