A strike on a healthcare facility in Sudan killed at least 64 people and wounded 89 others, the World Health Organization reported Saturday.

The attack occurred at a hospital in East Darfur and rendered the medical facility out of service, according to WHO officials. The casualties included children and medical personnel among the victims.

The United Nations humanitarian office in Sudan said it was "appalled by the attack on a hospital in East Darfur yesterday, reportedly killing dozens, including children, and injuring more."

One source identified the strike as an army drone attack, though this attribution could not be independently verified. The incident represents one of the deadliest single attacks on a healthcare facility reported in Sudan's ongoing conflict.

The strike has effectively eliminated healthcare services at the facility, further straining medical resources in the war-torn region. East Darfur has been particularly affected by Sudan's civil conflict that has displaced millions and created a humanitarian crisis.