A MOTHER and her two daughters have been found dead in a septic tank in a suspected murder-suicide.

The trio were tragically found in a sewage tank on Monday after the children's father reported them missing.

On Sunday night, the father told emergency services there were "disturbing" signs they had fallen into the septic tank at their home in the small town of Helenów Pierwszy in west-central Poland .

Four fire units and a diving team were deployed in a rescue operation, however they were too late to save them.

Two men helped pull out the mother and one child before emergency services arrived.

The 32-year-old mother was pronounced dead at the scene.

Both children were rushed to hospital, where they later died.

Polish news outlet Fakt reported the mother had slit her own throat and

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