Liberia on Wednesday recorded the sixth Ebola confirmed case and second death since the virus resurfaced in June.
A senior medical official said a Liberian woman has died of Ebola in a hospital in Monrovia shortly after being admitted on Tuesday.
The official said that the victim, Kebbeh Kollie, lived near Monrovia, and the sister of Cassius Kollie, one of five Ebola cases discovered in neighbouring Margibi County, where the disease re-emerged after a seven-week lull.
The official added that the detection raised fears that the infection may be spreading in the Montserrado County area of Liberia, which includes the capital.
More than 11,200 people have died from Ebola since an epidemic broke out in December 2013 in neighbouring Guinea.
Liberia was declared Ebola-free on May 9 but reported a new case nearly two months later.
The official said the outbreak was also still active in Sierra Leone and Guinea.
Dr Francis Kateh, Liberia’s Chief Medical Officer, said there was one new case.