Officials in Mali are investigating three suspected cases of Ebola, amid a regional outbreak of the deadly disease.
Mali's minister of health announced the suspected cases Friday.
Health workers have sent biological samples to be tested at a lab in the U.S. city of Atlanta. In the meantime, the three people have been placed in isolation, where they are receiving treatment.
Thursday, the World Health Organization said authorities in West Africa have reported more than 130 confirmed or suspected cases of Ebola, mostly in Guinea.
It said the disease had caused 83 deaths in Guinea and five in Liberia.
Ebola is caused by a highly infectious virus, spread through contact with bodily fluids. Health experts are warning people in the affected areas to avoid direct contact with patients or those killed by the disease.
Mali's government says it has created a "rapid intervention team" to monitor the situation and will set up a national hotline to report cases.
This is the first major outbreak of Ebola in West Africa. Previous outbreaks have occurred in central African countries, including Uganda and the Democratic Republic of Congo.