Both Congo and public health workers will have to spring into action to prevent a small pocket of disease from turning into a larger outbreak.
Bas-Uele province, the area of the outbreak, rests in a remote northern stretch of the DRC, on the border with the Central African Republic.
The last outbreak of Ebola in the DRC in 2014 killed at least 42 people.
"We urge you not to give in to panic", Congo's health minister said.
Ilunga also said the Congolese government "has taken all necessary measures to respond quickly and efficiently to this new outbreak".
At the same time, a separate outbreak killed more than 11,300 people and infected some 28,600 as it swept through Guinea, Sierra Leone and Liberia and caused alarm around the world.In June a year ago, WHO declared Liberia free of active Ebola virus transmission. At the time, 49 deaths were linked to the virus in the DRC.
Since Ebola virus was first identified in 1976, sporadic outbreaks have been reported in Africa. "We always take this very seriously", said spokesman Eric Kabambi.
Liberia was only declared free of active Ebola virus transmission last June.
"WHO and partners are completing the epidemiological investigation to better understand the extent of the current outbreak and who are potentially at risk of Ebola", World Health Organization spokesperson Tarik Jasarevic told CIDRAP News.
"There are 300,000 doses of Ebola vaccine available if needed to stop this outbreak becoming a pandemic", said Dr. Seth Berkley, whose World Health Organization team developed the vaccine in collaboration with Merck.
Colleen Kraft, MD, associate professor of infectious diseases at Emory University, told CIDRAP News that the outbreak is behaving like outbreaks those that came before West Africa's massive event.
The vaccine, known as rVSV-ZEBOV, was shown to be highly protective against Ebola in clinical trials published last December.