Amnesty International has concluded that the paramilitary Rapid Support Forces (RSF) in Sudan have committed crimes against humanity and ethnic cleansing in North Darfur state's el-Fasher, a report released on Wednesday showed.

The findings support mounting evidence from the past year that the RSF carried out widespread atrocities in its 18-month siege of el-Fasher, based on an analysis of images and videos by Middle East Eye.

Agnes Callamard, Amnesty International’s secretary general, called the findings of the new report "a stain on the conscience of humanity".

"Children were not collateral damage of this violence - often, they were deliberately targeted and have suffered immensely. They have been killed, injured, raped, abducted, and forcibly recruited on a massive scale," she said in a statement.

“A nationwide ceasefire is immediately needed," the statement added, and also called for an independent international force to be deployed to Sudan.