UNITED NATIONS (AP) — The U.N. chief said Monday that the United Nations has offered to monitor any cease-fire in Gaza and demanIded an end to the worst death and destruction he has seen in his more than seven-year tenure.

Secretary-General Antonio Guterres said in an interview with The Associated Press that it’s “unrealistic” to think the U.N. could play a role in Gaza’s future, either by administering the territory or providing a peacekeeping force, because Israel is unlikely to accept a U.N. role.

“Of course, we’ll be ready to do whatever the international community asked for us,” Guterres said. “The question is whether the parties would accept it, and in particular whether Israel would accept it.”

Israeli Prime Minister Benjamin Netanyahu and his government have accused the U.N. of being anti-Israel and have been highly critical of U.N. humanitarian operations in Gaza, including accusing U.N. workers of collaborating with Hamas. He also has voiced skepticism about peacekeeping missions, saying only Israel can protect itself.