A top Sudanese general accused the UAE in November of backing the RSF war effort.
The United Nations says about 500,000 people have fled Sudan into eastern Chad, several hundred kilometers south of Amdjarass.
The monitors' report included similar accounts.
They said that between 14-17 June, some 12,000 people fled El Geneina on foot for Adre in Chad.
The Masalit were the majority in El Geneina until the attacks forced their mass exodus.
Persons:
Michelle Nichols, Maggie Michael UNITED, El Geneina, RSF, Madani, Maggie Michael, Don Durfee, Daniel Wallis
Organizations:
Rapid Support Forces, United, Reuters, . Security, United Arab Emirates, United Nations, Security
Locations:
CAIRO, Sudan's West Darfur, United Nations, El, Sudan, Amdjarass, Chad, UAE, West Darfur, Geneina, El Geneina, Adre, Darfur, Libya, South Sudan, Egypt, States