Ukrainian President Volodymyr Zelensky arrived Monday in Vilnius for a summit with the leaders of NATO's eastern and Nordic members, some of Kyiv's staunchest backers amid the Russian invasion.

Zelensky's spokesman said he would hold "bilateral meetings" on the sidelines of the summit in the Lithuanian capital, which will also be attended by NATO Secretary General Mark Rutte.

Tehran called on Washington to provide a formal guarantee that it will lift sanctions imposed on Iran in ongoing talks on the Islamic republic's nuclear program.

"We want to guarantee that the sanctions are effectively lifted," foreign ministry spokesman Esmaeil Baqaei told a news conference Monday in Tehran. "So far, the American side has not wanted to clarify this issue."

Gaza's civil defense agency said Israeli fire killed at least 22 people on Sunday near a U.S.-backed aid distribution center in the southern city of Rafah, revising an earlier death toll.

Hamas announced that it has replied to a U.S.-backed Gaza ceasefire proposal, but Washington's main negotiator criticized the response as "totally unacceptable".

Iran's Foreign Minister Abbas Araghchi said he had received "elements" of a U.S. proposal for a potential nuclear deal following five rounds of talks mediated by Oman.

Omani Foreign Minister Badr al-Busaidi "paid a short visit to Tehran today to present elements of a U.S. proposal which will be appropriately responded to in line with the principles, national interests and rights of the people of Iran," Araghchi said on X.

Lebanese official media said an Israeli strike killed one person in the south on Saturday despite a six-month-old ceasefire, as Israel said it targeted a Hezbollah militant.

Prince Faisal bin Farhan will become the first Saudi foreign minister to visit the occupied West Bank on Sunday, a diplomatic source told AFP, as the Gaza war drags on and Riyadh pushes for Palestinian statehood.

Israel struck western Syria overnight, the Israeli military and Syrian state media said, with one civilian reportedly killed in the first such attack on the country in nearly a month.

Israel has said that Hamas must accept a hostage deal in Gaza or "be annihilated", as U.S. President Donald Trump announced that a ceasefire agreement is "very close".

Israel accused French President Emmanuel Macron of undertaking a "crusade against the Jewish state" on Friday after he called for European countries to harden their stance on Israel if the humanitarian situation in Gaza did not improve.

"There is no humanitarian blockade. That is a blatant lie," Israel's foreign ministry said in a statement, defending its efforts to allow in aid. "But instead of applying pressure on the jihadist terrorists, Macron wants to reward them with a Palestinian state. No doubt its national day will be October 7."