France, Nov. 3 -- The fall of El Fasher, the last army stronghold in Darfur, has become a turning point in Sudan's war. Last week, after an 18-month siege, the powerful paramilitary Rapid Support Forces seized the city, leaving thousands dead or displaced and many civilians still trapped. RFI spoke to an analyst who warns Sudan could now be on the brink of a split between east and west.

Since the RSF takeover, reports have emerged of executions, sexual violence, looting, attacks on aid workers and abductions in and around El-Fasher, where communications remain largely cut off.

The prosecutor's office at the International Criminal Court warned Monday that atrocities committed in El-Fasher could constitute war crimes and crimes against hu...