Police are now interviewing a woman in relation to the five people found dead in the Nausori Highlands in Nadi on Monday.
The man who was a person of interest and interviewed by Police yesterday, has now been released.
It has been confirmed that the man is known by the family from Legalega.
Investigators have revealed that the findings of the post mortem examination were consistent with a substance consumed by all five victims.
Spokesperson Ana Naisoro says more tests will be conducted by the Fiji Police Chemistry Scientific Lab in Nasova.
The bodies are of 63 year old carpenter, Nirmal Kumar, his 54 year old wife, Usha Devi, their 34 year old daughter, Nileshni Kajal and Kajal's two daughters aged 11 and 8 years.
They were found in the sightseeing area in the Nausori Highlands.
No visible injuries were found on the five people.
A one‑year‑old child was also found crawling nearby.
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