Min Sook Moon, aged 49, was last seen walking along Rawson Street, Epping at about 1.20pm on Monday, March 8.
Family members notified Ryde police of the woman’s disappearance after she failed to make contact with them on Wednesday, March 10.
Officers established Strike Force Cusso to investigate the circumstances surrounding the woman’s disappearance.
During inquiries, officers determined the woman entered a vehicle in a carpark on Rawson Street, Epping at about 1.30pm on Monday, March 8.
A 55-year-old man attended Eastwood Police Station this morning, where he was arrested.
“As part of ongoing inquiries, officers attended a park at Silverwater and located a body just before 4pm,” police said in a statement.
“A crime scene has been established, which is being forensically examined.”
The man remains in custody at Ryde Police Station as inquiries continue.