Two of northern Gaza’s last functioning hospitals have been encircled by Israeli troops, preventing anyone from leaving or entering the facilities, hospital staff and aid groups said this week, as Israel pursued its renewed offensive into the devastated Palestinian territory.

The Indonesian hospital and al-Awda hospital are among the region’s only surviving medical centers. Both have come under fire this week, including shelling at al-Awda that happened Wednesday as The Associated Press spoke to its director on the phone.

The WHO said hospitals in northern Gaza are “at a serious risk of shutting down completely.” The United Nations agency has documented nearly 700 attacks on health care facilities in Gaza since the start of Israel’s 19-month war against the Hamas militant group.

Israeli authorities issued evacuation orders Friday for large parts of northern Gaza ahead of attacks intended to pressure Hamas to release more hostages. New evacuation orders followed Tuesday.

Israeli military operations and evacuation orders 'are stretching the health system beyond the breaking point,' he said. Only 20 out of Gaza’s 36 hospitals remain partially functioning, serving the territory’s more than 2 million people, amid continued bombing, rising malnutrition rates, and dwindling medical supplies.

The Israeli military has raided or laid siege to hospitals throughout the war, accusing Hamas of using them as command centers and to hide fighters, though it has only provided evidence for some of its claims.