Sudan's civil war has entered a new horrific phase.

The paramilitary rapid support forces have gone on a killing rampage

after taking over the key city of El Fasher in western Darfur

after over a year and a half of siege.

Hundreds of thousands have fled to neighboring Tuila, escaping famine and mass executions.

Nick Schifrin has this report, but a warning, images and accounts in this story are disturbing.

This week, the people of Al-Fashir, beaten and threatened, attacked and hunted, fled for their lives from a murderous militia that films itself

unleashing ferocious violence.

A fighter shows off his work.

We've burned them, he says.

We've burned them.

They show off their horror and document their own war crimes with videos too graphic to show.

The paramilitary rapid support forces turned an alfasher convoy trying to escape into a killing field, a ditch, into a mass grave,

and a home for healing into a death trap.

The UN and international humanitarian groups accuse the RSF of entering Al-Fashar's Saudi

maternity hospital and killing everyone inside.

At least 450 people are dead.

Survivor Fatma Abdul Rahman tries to, but is burdened by unimaginable

loss and trauma.

Shelling killed my daughter, injured my other daughter's eye and paralyzed my son. I was hit by

shelling. My body is full of wounds. El Fasher was the last holdout in Darfur of the Sudanese armed forces, which has fought

the RSF in a brutal three-year civil war. Sudanese cities have become battlegrounds. Both sides

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