President Trump says US Navy will begin blockade of Strait of Hormuz

As Vice President JD Vance and top White House officials travel to Islamabad for peace talks with Iran, President Donald Trump projected confidence for how the negotiations would go, saying: "We'll be able to finish it off. One way or the other. It's going well."

"I wish him luck, he's got a big thing -- we'll find out what's going on," Trump told reporters on the tarmac as he departed D.C. for a political fundraiser in nearby Charlottesville. "Have a good team, and they meet tomorrow. We'll see how it all works out."

Trump downplayed the fact that his top condition for the ceasefire -- that the Strait of Hormuz must be open -- has not been met, saying he anticipated progress in opening the Strait "with or without" a deal. He later said that the Strait would open "fairly soon."

Asked to articulate what a good deal looks like, he said, "No nuclear weapon -- number one."

-ABC News' Isabella Murray

Lebanon and Israel will hold a meeting on Tuesday at the U.S. State Department "to discuss the announcement of a ceasefire and the start date of negotiations between Lebanon and Israel under the auspices of the United States," according to the office of the Lebanese presidency.

This comes after the Lebanese and Israeli ambassadors to the U.S. spoke on the phone Friday as part of the framework for talks aimed at ending hostilities between the two countries. The U.S. ambassador to Lebanon, Michel Issa, who is currently in Washington, D.C., was also on the call.

-ABC News' Ghazi Balkiz

The Iranian delegation set to meet with U.S. officials for negotiations this weekend has arrived in Islamabad, Pakistan, according to Iranian state broadcaster IRIB.

The delegation is headed by Speaker of the Iranian Parliament Mohammad Ghalibaf.

IRIB says that the talks will begin only "If the other side accepts Iran's preconditions for starting the negotiations."

Iran has been insisting on a ceasefire in Lebanon, and Ghalibaf earlier Friday also said Iran's frozen assets would need to be unfrozen before talks started.

Iranian Foreign Minister Abbas Araghchi is also part of the delegation, along with several other high ranking officials and "security, political, military, economic and legal committees."

-ABC News' Somayeh Malekian

The Israel Defense Forces told ABC News that the "incident" in which Lebanese state security personnel were killed on Friday is under review.

The IDF said it was striking Hezbollah targets in the Nabatieh area.

-ABC News' Dana Savir