The World Health Organization said Wednesday that it was appalled by reports that more than 460 patients and their companions had been shot dead at the last partially-functional hospital in El Fasher, Sudan.

The capture of El Fasher on Sunday after an 18-month siege has solidified the paramilitary Rapid Support Forces¡¯ control over Darfur, sparking fears of ethnically motivated violence reminiscent of the western region¡¯s darkest days.

¡°WHO is appalled and deeply shocked by reports of the tragic killing of more than 460 patients and companions at Saudi Maternity Hospital in El Fasher,¡± the U.N. health agency¡¯s chief, Tedros Adhanom Ghebreyesus, said in a statement.