Homicide Squad detectives have this morning arrested a man as part of their investigation into an incident where the body of a woman was located at a waste management facility in Epping last week.
Staff at the Cooper Street facility located a body while moving green waste on Wednesday 3 July and subsequently contacted police.
Investigators believe the woman was inside a bin that was picked up outside a property on Hilgay Street in Coolaroo on Tuesday 2 July and then conveyed to the Epping facility.
An investigation is underway to determine the circumstances surrounding her death.
The woman, who is still yet to be formally identified, is believed to be a 67-year-old Coolaroo woman.
Detectives arrested a 45-year-old Coolaroo man in Glenroy about 11.15am today and he will now be interviewed by police.
It's believed the pair were known to each other.
A significant CCTV canvas of the Coolaroo area remains ongoing and police are keen to speak to anyone who may have CCTV or dash-cam footage, particularly between Sunday 23 June and Tuesday 2 July.
Detectives are also keen to speak to anyone who may have witnessed any suspicious activity in the area around that time.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or log onto www.crimestoppersvic.com.au