Maud Kells, who was named in the 2015 New Year honours list, was shot and wounded in the Democratic Republic of Congo on Sunday.
The incident took place when bandits attacked Maud Kells, a missionary with WEC International, at her home near the jungle village of Mulita in the north east of the country.
She was shot twice and wounded in the shoulder, according to a statement released by the mission agency. She was subsequently flown to a hospital at a larger settlement and was reported to have had a good night, despite still being in pain.
Ms Kells, 75, from Cookstown in Northern Ireland, has served in what is now the Democratic Republic of Congo since 1968.
Working initially as a missionary nurse, she has been involved in the training of Congolese nurses in five hospitals and 30 health centres.
Ms Kells, who trained at Belfast’s Royal Victoria Hospital, was recently named as a recipent of the OBE for services to people in the Democratic Republic of Congo.