People set fire to an Ebola treatment center in a town at the heart of the outbreak in eastern Congo on Thursday after being stopped from retrieving the body of a local man, a witness and a senior police officer said, as fear and anger grow over a health crisis that doctors are struggling to contain.

The World Health Organization is sounding the alarm over the “scale and speed” of a deadly Ebola outbreak sweeping eastern Democratic Republic of Congo.

The cash-strapped World Health Organization is sending a team of experts to the Democratic Republic of the Congo as hundreds of cases of Ebola are suspected.