Electricity generators at all Gaza health facilities will stop working within 10 days, the Palestinian enclave's health ministry warned on Sunday.
This is due to a lack of oil, filters, and spare parts, the ministry said, adding that the issue posed a major threat to patients' lives, especially in sensitive departments including intensive care.
In a statement posted to Facebook, it called on "all concerned international and humanitarian institutions" to quickly step in to get the necessary items in.
Israel has been obstructing the entry of humanitarian aid to Gaza during its war on the strip, leading to devastating consequences for civilians who are unable to access adequate food supplies or medical care.
The healthcare system in Gaza has been devastated by Israel's war on Gaza, with hospitals and ambulances coming under attack.
The Israeli campaign has killed at least 41,431 people, according to the Gaza health ministry, and South Africa has accused Israel of genocide at the International Court of Justice, the United Nations' top tribunal.
Mediators have so far been unable to secure a ceasefire and captive-exchange deal that would end the war, which began almost a year ago in October 2023.
Israeli forces have pummelled Gaza in a campaign that has seen a surge in international popular solidarity with Palestinians.