As a result of the collision between multiple vehicles, the 15-year-old passenger died in the hospital. South Australia–Victoria border on Sunday.

The girl died on Monday night and second child A Mount Gambier family will be killed in a three-car crash on Riddoch Hwy in Nangwarry.

The girl’s 5-year-old brother died at the scene.

Find out the news with the 7NEWS app: Download today

They were the children of Chris Eylenburg, a highly respected local chef, and his wife, Paula, who were both in the Toyota with their two other children at the time of the Sunday afternoon crash.

South Australia Police say a Mount Gambier family suddenly braked after the black Holden sedan in front of them hit an emu.

A white Nissan ute traveling behind the Toyota crashed into the back of the Toyota.

Chris, 42, Paula, 46, and their two children, a 13-year-old girl and a 6-year-old boy, were taken to hospital for treatment of minor injuries.

The driver and passengers of the other two vehicles involved in the accident were uninjured.

More to come…