MONROVIA, Liberia (AP) — The Liberia airport authority says a chartered evacuation plane that will take home the second American sick with Ebola has landed at the airport in the capital.

Binyah Kesselly, the chairman of the Liberia Airport Authority’s board of directors, told The Associated Press that the plane arrived late Monday afternoon in Monrovia.

It is scheduled to take off early Tuesday with American missionary Nancy Writebol aboard. Writebol, a long-time missionary from North Carolina, will be treated at the same Atlanta hospital where an American doctor has been taken.

Writebol’s son, Jeremy, said his mother “is still struggling” but that “there seems to be improvement” and that the family is optimistic she will recover amid a spreading Ebola outbreak.

Ebola has killed at least 887 people in four West African countries.

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