U.S. and European negotiators on Tuesday expressed their "shared commitment to a strong post-war European security architecture" and insisted Ukraine's territorial integrity must be respected, on the sidelines of talks to halt Russia's war.

"The participants reaffirmed their shared commitment to a strong post-war European security architecture and arrangements, and were clear that a strong NATO will remain central to Euro-Atlantic collective defense," a joint statement from U.S., European and Ukrainian representatives said.

Iran on Tuesday urged the United States to meet its demands in a plan to reopen the Strait of Hormuz, after President Donald Trump spoke of "positive momentum" to end their eight-month war.

"The conflict with Iran will not be resolved through military means, nor by intensifying sanctions," Foreign Minister Abbas Araghchi told Iran's IRNA news agency.

Syria's foreign minister on Monday insisted that his country has no troops deployed in Yemen and was not planning on sending any, after Yemeni sources told AFP that Syrian soldiers were in Yemen and Saudi Arabia.

"There is no deployment of troops to Yemen nor is there a plan for such deployment in the near future," Asaad al-Shaibani said during a press conference.

The death toll from Saudi strikes on Yemen’s Sanaa province climbed to 44, including more than 20 children, the Houthis said on their television channel Monday.

A 2022 truce that had paused fighting in Yemen’s long-running conflict fell apart in July, restarting fighting between the Houthis and the Saudi-backed government.

Saudi authorities briefly warned Riyadh's residents of an aerial threat on Monday, a day after an attack on a skyscraper belonging to oil giant Aramco rattled the capital's business district.

Saudi Arabia, the world's biggest oil exporter, has faced near-daily strikes from Yemen's Iran-backed Houthis for weeks, after a truce in their long-running conflict unraveled in July.

U.S. President Donald Trump cast doubt on renewed fighting with Iran, telling CNN it was "highly unlikely," ahead of a meeting with mediator Qatar's prime minister on Monday.

Trump has threatened to resume strikes in recent weeks, with U.S. media reports suggesting that hostilities could restart after last Tuesday's midterm elections.

The U.S. military has announced it will create a 20-member task force to find ways to disrupt land routes into Iran that it says are used for shipments of weapons and illicit materials.

The restrictions would expand on a U.S. naval blockade of Iranian ports during the two countries' eight-month war, in which Tehran has also restricted passage through the critical Strait of Hormuz trade route, choking global energy supplies.

Israel is not finished with Iran, its defense minister said Sunday, as he renewed charges that Tehran is pursuing nuclear weapons, which the Islamic republic has long denied.

"With regard to Iran, the mission is still not complete. Iran is trying to renew its efforts to obtain nuclear weapons -- alongside other grave efforts that place the State of Israel in real danger," Defense Minister Israel Katz said at a ceremony.

Israel's president announced he would task Gadi Eisenkot with forming the next government following last week's election, in what Netanyahu's rivals see as a first step to remove the country's longest-serving prime minister.

The opposition bloc led by Eisenkot, a former military chief and political newcomer who has tried to appeal to secular and liberal Israelis, has opened the door to a once improbable alliance with ultra-Orthodox Jews, which could give it the numbers to form a coalition.

Washington is offering a $20 million reward "and possible relocation" for information about Iran's nuclear program, the U.S. military said, as President Donald Trump reiterated Tehran wants to make a deal to end the war.