JANE FERGUSON:

This is what ethnic cleansing looks like. Entire populations of specific tribes are being forced out of areas in South Sudan.

Malakal town was a mixture of tribes. Government and opposition forces have been fighting over it throughout the war, both committing atrocities. Each time the town changed hands, civilians of a specific tribe were targeted. It's now controlled by Dinka government soldiers.

Entire neighborhoods, where the Nuer and other tribes at risk used to live, lay silent and empty, the grass reclaiming streets that used to be home for so many.

We are not allowed to get out and film in the town center. There's lots of police and army around, but what there aren't are civilians who live here. This was once South Sudan's second biggest city. And the streets and neighborhoods are completely abandoned now. Civilians are fleeing towns and cities across South Sudan because of repeated attacks. And they're just turning into ghost towns.

They ran to this camp just outside the town. It is a dusty, miserable place, where sewage runs between shacks and desperately poor survivors of the violence try to go on living.

Elizabeth is one of them. A single mother of six, she sells cups of tea in the camp to earn some money. But the memory of what happened in the town is always with her.