Officials from the Republic of Congo said the Ebola virus is now under control. (Photo: CGTN)

Health authorities in Kinshasa declared the Ebola virus under control five weeks after the latest outbreak left 89 people dead in eastern Democratic Republic of Congo.

The health ministry announced the outbreak on August 1 in North Kivu province, and on Thursday, revealed that it had spread to Butembo, a city of a million people.

But Health Minister Dr. Oly Ilunga Kalenga said, "Since August 13, there have been practically no more cases, we can say that the situation has been brought under control at the epicenter (of Mabalako)."

The latest outbreak of the virus is the 10th to strike DR Congo since 1976, when the disease was first identified and named after a river in the country's north.

"To date, we have 129 cases (31 probable and 98 confirmed), 89 deaths and 33 patients cured," Dr Oly Ilunga said.

Fears that the disease might spread further had been expressed Thursday after news of two deaths in Butembo, a commercial hub and popular transit point for neighboring Uganda.

A woman and one of the medical staff who had been treating her, died in the city.

"Even at Butembo, the situation is not critical," the minister said on a news conference, which also attended by Congolese professor and leading Ebola researcher Professor Jean-Jacques Muyembe, who urged people to report any sign of the disease.

"The Ebola virus is circulating here and in Africa in general ... we must be vigilant," Muyembe said.

The previous outbreak of Ebola, which left 33 people dead in the northwestern province of Equateur, was decreed over on July 24.