Brussels, Belgium - The European Union's top officials, as well as China, on Monday welcomed a newly announced deal to end the US and Israel's war of aggression against Iran and Lebanon.

"I look forward to an end to this costly war and to the full restoration of freedom of navigation in the Strait of Hormuz," Antonio Costa, the president of the European Council, wrote in a Monday post to X.

"Weapons must now fall silent," Costa urged, confirming the "European Union is ready to contribute to advancing a comprehensive strategy for lasting peace across the Middle East."

The US and Iran on Sunday said they had reached a deal to end the Middle East war on all fronts, including Lebanon, and reopen the vital Strait of Hormuz. They did not, however, offer any detailed information on the terms of the deal.

Ukraine Conflict Deadly strikes on Ukraine kill nine and leave massive Kyiv cathedral in flames

European Commission Chief Ursula von der Leyen stressed the "priority now is [the peace deal's] swift and full implementation," and called on "all parties to respect Lebanon's sovereignty and territorial integrity and implement a genuine ceasefire."

"There can be no peace in the Middle East while Lebanon is in flames," she said, adding that any final deal "should end Iran's nuclear and ballistic programmes and its destabilizing activities in the region."

China also welcomed the agreement on Monday, commending Pakistan for its efforts to mediate an end to the war.

"China welcomes the agreement… and expresses appreciation for the mediation efforts made by Pakistan," foreign ministry spokesperson Lin Jian told a news briefing on Monday, adding that Beijing hopes the deal would be signed as scheduled.

China "hopes that safe and free passage through the strait will be restored as soon as possible," Lin added.