Eerie find on seabed after young sisters 'killed by dad'

A discovery in the ocean might hold the key to what happened to two missing girls and their dad who is accused of killing the sisters.

Olivia Gimeno Zimmermann, 6, and her one-year-old sister, Anna, were allegedly taken by their father, Tomas Gimeno, on the Spanish island of Tenerife on April 27.

A body was then found two weeks ago in a bag tied to an anchor at a depth of 1000 metres near the Canary Islands, which coroners confirmed belonged to Olivia.

Anna, 1, and sister Olivia Gimeno Zimmermann, 6, are pictured.
Anna, 1, and sister Olivia Gimeno Zimmermann, 6, were reported missing on April 27. Olivia's body was later found. Source: Source: SOS Desaparecidos

But Anna and her father are yet to be found.

There are allegations Gimeno drugged his daughters and dumped them both into the sea.

According to Spanish news site El Periodico, drugs, including muscle relaxants, were allegedly found by police in Gimeno’s Tenerife home and the Civil Guard believe these were used to incapacitate his daughters.

On Thursday authorities confirmed two oxygen tanks used for diving were found 1000 metres below the surface, Spanish news site Heraldo reported.

Spanish Oceanographic Institute (IEO)'s vessel Angeles Alvarino leaves the port of Santa Cruz de Tenerife.
Spanish Oceanographic Institute (IEO)'s vessel Angeles Alvarino leaves the port of Santa Cruz de Tenerife to search for the children and their father. Source: Getty Images

Authorities confirmed the tanks belonged to Gimeno.

Gimeno meant to “cause the greatest pain imaginable” to his ex-wife and mother of the children Beatriz Zimmermann, according to court documents viewed by El Pais.

The pair separated last year. The court documents further state Ms Zimmermann had a new partner.

The father also “sought to create uncertainty” in hiding Anna and Olivia where they could never be found.

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