Hospitals in the southern Gaza Strip have only three days of fuel left, the head of the World Health Organization said Wednesday, due to the closure of border crossings.

"The closure of the border crossing continues to prevent the UN from bringing fuel. Without fuel all humanitarian operations will stop. Border closures are also impeding delivery of humanitarian aid into Gaza. Hospitals in the south of Gaza only have three days of fuel left, which means services may soon come to a halt," Tedros Adhanom Ghebreyesus said on X.