US Secretary of State Marco Rubio has called for international action to cut off the supply of weapons to Sudan's paramilitary Rapid Support Forces (RSF), who are accused of mass killings in el-Fasher, BBC reported.

At the end of a G7 foreign ministers meeting in Canada, Rubio said the RSF had committed systematic atrocities, including murder, rape and sexual violence against civilians. 

Sudan's army accuses the United Arab Emirates of propping up the RSF with weapons and mercenaries sent via African nations. The UAE and the RSF have repeatedly denied these allegations, according to BBC.