Homicide squad detectives and Kalgoorlie detectives are investigating the death of a 37-year-old woman in a Kalgoorlie suburb on Tuesday.

The woman was found in a park on Wittenoom Street in Piccadilly at around 5am.

A 42-year-old man known to the woman is assisting detectives with their investigation.

Detectives are urging anyone with information to call Crime Stoppers on 1800 333 000 or to make a report online at www.crimestoppers.com.au.