A family has been left in shatters after a little girl allegedly threw her baby sister out a fourth floor window in a suspected jealous fit, killing her instantly View 3 Images A five-year-old girl hurled her newborn sister out of a fourth floor window (Image: Getty Images)

A "jealous" girl allegedly killed her newborn baby sister by throwing her from a forth floor window. The five-year-old is said to have been left unattended with her 21-day-old sister in their family flat in Vasilyevo, Russia . ‌

Her mum had reportedly left the children alone while her husband was at work . A witness said they heard the five-year-old's screams coming from the fourth floor window before spotting the tragic tot's body on the concrete floor. ‌

The witness said their “knees went weak”

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