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.

Anxious healthcare workers in eastern Congo said Wednesday they are underprotected and undertrained in a rapidly spreading Ebola outbreak of a rare type of the virus in one of the world's most remote and vulnerable places.