The lone nun who miraculously survived an Islamic State (ISIS) assault on a Catholic church-run home for the elderly in Yemen on March 4—which killed 16 people including four of her fellow sisters—has come out with her personal account of what transpired on that fateful day.

Sister Sally recounted her story in a conversation with another nun, Sister Rio, who then wrote down her account of the brutal murders, CBN News reported.

According to Sister Sally, the terrorists stormed the retirement home on the southern Yemeni city of Aden at 8:30 a.m. of March 4 after the nuns and volunteer aid workers had their usual breakfast and prayer time.

"Ethiopian men (Christian) began running to tell the sisters ISIS was here to kill them. They were killed one by one," Sister Sally recalled.

The ISIS gunmen who were dressed in blue proceeded to gun down every nun and volunteer they could find until Sister Sally was the only one left, according to CBN News. Some reports said all the victims were shot in the head.

She then tried to go outside to warn the people in a nearby convent. However, the presence of the terrorists prevented her from going out and she was forced to hide behind the door of "the refridgerator room."

"The ISIS men were everywhere, searching for her and even entered the refridgerator room at least three times without finding her," Sister Rio said.

She said Sister Sally's survival is nothing short of "miraculous" as the terrorists murdered all the other four nuns and the volunteer aid workers inside the retirement home.

After the killings, the Islamic terrorists reportedly destroyed all religious articles and Christian symbols at the facility.

The four martyred nuns were identified as Sister Judith from Kenya, Sister Anselm from India, and Sister Marguerite and Sister Reginette from Rwanda. They were all working for the Missionaries of Charity, an order founded by Mother Teresa.

Indian priest Rev. Tom Uzhunnalil was also kidnapped by the Islamic extremists and has not yet been found.

Sister Sally, the members of her congregation and the Christian global community at large are still grieving over the victims' deaths. However, Sister Sally said she and her fellow missionaries have "fully surrendered" to the will of God.

She urges Christians "to pray that their blood will be the seeds for peace in the Middle East and to stop ISIS."