Qatar, a key negotiator in the deal to end the war between the U.S. and Iran, said on Thursday the agreement served as a firm basis for further talks.

The Gulf state's foreign ministry said in a statement that the deal "represents a solid foundation for advancing to the next stage of negotiations between the American and Iranian parties", ahead of technical talks expected in Switzerland on Friday.

Israel's foreign minister said Thursday that he was severing all contact with the European Union's top diplomat Kaja Kallas over reported remarks in which she allegedly compared Israel to the apartheid regime that once ruled South Africa.

"Recently, it was published that during her visit to Mexico, she compared Israel to the racist apartheid regime that existed in South Africa," Gideon Saar wrote on X.

The Swiss foreign ministry confirmed Thursday that "initial negotiations" on implementing a U.S.-Iran memorandum of understanding on ending the Middle East war were planned to take place in Switzerland on Friday.

"Currently, the plan remains for the United States and Iran, along with the mediators Pakistan and Qatar and other involved countries, to meet tomorrow at the Burgenstock for initial negotiations on the implementation of the agreement," the ministry said, lifting a degree of uncertainty that had hung over the meeting at the luxury mountainside resort near Lucerne.

U.S. President Donald Trump has said Washington "did send a copy" of its accord with Iran to end the Middle East war, following reports of tensions with Prime Minister Benjamin Netanyahu.

Insisting he maintains a good relationship with Netanyahu, Trump reaffirmed his criticism at the G7 summit of Israel's campaign against Hezbollah in Lebanon, saying "they (Israel) could do a much better job".

The Israeli military announced Thursday that one of its soldiers had been killed in fighting in southern Lebanon the day before, in an incident that also wounded seven soldiers.

Master Sergeant Alexander Filin, 29, "fell in combat", the military said in a brief statement, adding that an officer, a reserve officer and a reserve soldier were moderately injured.

Hezbollah chief Sheikh Naim Qassem on Wednesday hailed an understanding reached between Tehran and Washington to end the regional war as a "great victory", calling it a "pivotal point" for Lebanon.

Although the U.S.-Iran deal to end the Middle East war has not been officially released, American and Iranian officials, as well as mediator Pakistan, have said it includes Lebanon.

An Iranian official on Wednesday said the funeral procession for late supreme leader Ayatollah Ali Khamenei, who was killed by U.S.-Israeli strikes in February, will pass through Iraq before his burial in Iran.

U.S. President Donald Trump said Wednesday he expected the accord with Iran ending the Middle East war to be signed "shortly" but cast uncertainty over the exact date.

Tehran's foreign ministry on Wednesday said it was considering a plan for the presidents of the U.S. and Iran to sign the deal ending the Middle East war, ahead of the expected ceremony in Switzerland.

U.S. President Donald Trump on Wednesday warned Iran he was ready to resume military action if Tehran did not abide by its obligations, two days ahead of the signing of an accord to end the war between the foes.

"If they (the Iranian side) don't behave, we'll go right back to dropping bombs right smack in the middle of their head," Trump said at the G7 summit alongside Egyptian President Abdel Fattah al-Sisi.