The UN has condemned intimidation of staff and patients by armed groups in the Central African Republic (CAR).
Men armed with machetes, knives and other crude weapons entered hospitals in the past few months, the UN said, most recently in the town of Bambari.
Terrified relatives had moved patients from Bambari hospital even though they still needed treatment.
The UN said it was unclear who was carrying out the attacks, suspected of being ethnically motivated.
The conflict has led to a 70% increase in the number of internally displaced people since January 2017, the UN says.