Congolese President said twelve people were ordered to undergo testing for possible Ebola infection in Goma, days after three patients in the densely populated city tested positive for the disease.
It added that six others suspected of carrying the virus were discharged after testing negative on Friday.
A one-year-old girl became the third patient to test positive for Ebola in Goma, local officials said.
She is the daughter of the second patient, a gold miner, who died earlier in the week.
His wife, also infected, and the young girl were in stable condition.
Goma is the capital of North Kivu province, which has borne the brunt of the year-old epidemic that has claimed more than 1,800 lives.
Other countries in the region fear the virus could spread from D.R. Congo to their territories.
