The armed aggression attacked an Ebola treatment center in eastern Democratic Republic of Congo on Wednesday on fire and became more widespread as a means of security forces.
Identity and reason were unknown. Support workers have been puzzled in some areas to have an Ebola outbreak.
Thousands of armed militias attack Uganda and Rwanda's eastern border regions in Congo, which has significantly damaged the response of the disease.
The Ministry of Health said in a statement that 38 suspected Ebola patients and 12 confirmed cases were in the middle of the attack. They confirmed four cases of the patients fleeing and looking, he said.
No one was injured, not even workers, added the ministry.
The French medical doctor Medecins Sans Frontieres (MSF), along with the ministry together with the center, declared a "deplorable attack" and focused on the immediate security of patients and workers.
Butbongo's city attack on Kongo Ebola hit this week was the second eastern. On Sunday, unknown individuals flared up at a Katwa treatment center when a nurse died.
The onset of the current Ebola, the first statement of the first August, was the second time that the fever was the dead, found in Congo in 1976. At least 553 people have died and more than 300 have been infected.