The Israeli humanitarian organization IsraAID “is mobilizing emergency support as a growing regional Ebola outbreak spreads in the Democratic Republic of Congo (DRC) and Uganda,” it announced on Thursday.

According to IsraAID, some 1,200 suspected or confirmed Ebola cases and more than 250 deaths have been reported in the DRC, while Uganda has confirmed seven cases and one death. The outbreak involves the rare Bundibugyo strain of the virus, for which no approved vaccine currently exists.