Argentine authorities say they've found the remains of two missing sisters and have arrested the son of one of them.
The bodies of 63-year-old Pirhya Sarussi of Israel and 54-year-old Australian scientist Lily Pereg were found Saturday on a lot beside the home of Gilad Pereg near the city of Mendoza.
Prosecutor Claudia Rios confirmed the 36-year-old son of Sarussi was arrested, and said an autopsy would determine the cause of death.
The two women vanished about two weeks ago, and colleagues of Dr Pereg opened a GoFundMe page to raise money for a search.
The Sydney-based University of New England said Pereg was a microbial ecologist with a 25-year research experience in plant and soil microbiology.
She chaired the soil, microbiology and biodiversity subdivision of the European Geosciences Union.
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