Police believe they're edging closer to finding those responsible for three homicides in Waikato

A light coloured Nissan Terrano SUV used in relation to a body being found at McLaren Falls has been located.

Police want to hear from anyone who saw the vehicle travelling between Hamilton and McLaren Falls, from Wednesday to Friday last week.

Officers are also looking into the death of a man in Huntly, and a shooting in Hamilton.

Detective Inspector Graham Pitkethely says progress is being made everyday.

He says there's dedicated staff looking into the cases separately, and good inroads are being made.