Vice President JD Vance is leading the U.S. delegation in Switzerland.
President Donald Trump announced "major combat operations" against Iran on Feb. 28, with massive joint U.S.-Israeli strikes targeting military, government and infrastructure sites.
Following the announcement of a two-week ceasefire, initial U.S.-Iran talks in Pakistan in April failed to reach a peace deal. Trump later announced the open-ended extension of the ceasefire and the continuation of a U.S. blockade until negotiations concluded.
On Sunday, Trump announced that the U.S. and Iran had reached a "great deal." The memorandum of understanding was read to reporters on Wednesday, and the U.S. and Iranian presidents signed it that day, a White House official said.
Hezbollah fired rockets at Israel Defense Forces in southern Lebanon which were intercepted by the Israeli Air Force, the IDF said Thursday.
No injuries were reported, according to the IDF.
U.S. forces have lifted the blockade on ships leaving or entering Iranian ports, U.S. Central Command announced Thursday.
"U.S. military blockade enforcement efforts have ceased," CENTCOM said in statement posted on X.
While the blockade has been lifted, U.S. Naval ships "will remain in the general area to make sure that all aspects of the agreement are adhered to, obeyed and in full force and effect," CENTCOM said.
-ABC News' Luis Martinez
Officials from the U.S. and Iran are expected to meet on Friday in Switzerland, where they'll be joined by officials from mediating countries Pakistan and Qatar, "for initial negotiations on the implementation of the agreement," the Swiss foreign ministry said in a statement.
The meeting is expected to take place in Bürgenstock, a resort area near Lucerne, the ministry said.
-ABC News' Victoria Beaule
Israeli forces will remain in what Israel refers to as the "security zone" in southern Lebanon, an IDF official said. Further, the IDF will "continue to remove threats" even if they are "beyond the security zone."
The IDF official said that "further steps are still being discussed within the framework of direct negotiations between Israel and Lebanon. The representatives will reconvene next week."
-ABC News' Jordana Miller and Victoria Beaule
