A woman has died from Ebola in Sierra Leone, the WHO confirmed today, a day after it declared West Africa free from the deadly disease that has killed over 11,000 people since its outbreak in December 2013.

"The case has been confirmed. The information that I have is it's a woman who passed away and then was tested [positive] for Ebola. She passed away on January 12," said WHO spokesperson Tarik Jasarevic. Though WHO has not yet confirmed the identity of the victim, reports indicate that the victim was a 22-year-old woman from the Guinean border who came to the northern Tonkolili district for medical help. Sierra Leone was declared Ebola-free on November 7, last year but remained under a 90-day  period of enhanced surveillance to ensure no hidden chains of transmission have been missed.