The BBC reports that this is the second confirmed death from the Ebola Virus disease in the country.
According to health officials, the late nurse had treated a man who arrived from Guinea at the Pasteur Clinic in Bamako, capital of Mali.
It was however, gathered that the clinic has been quarantined.
Ebola is transferred through direct contact with the bodily fluids of infected people.
About 5,000 people have been confirmed to have died from Ebola in West Africa, mostly in Guinea, Liberia and Sierra Leone.
Only recently, the WHO declared the Ebola epidemic a global health emergency.
You can read details of the latest case on BBC.