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

Vice President JD Vance held a bilateral meeting with Pakistan Prime Minister Shehbaz Sharif in Islamabad, according to the White House.

The press pool traveling with Vance was not brought into the meeting, but there is video of the meeting via the Ministry of Information of Pakistan.

The American Delegation included Steve Witkoff and Jared Kushner. The Pakistan Delegation included Pakistan Prime Minister Shehbaz Sharif, Pakistan Minister for the Interior Mohsin Naqvi and Foreign Minister and Deputy Prime Minister Mohammad Ishaq Dar.

The White House is working to provide a list of all the participants. No additional details are available at this time, per the White House.

A senior U.S. official is also denying a Reuters report that the U.S. has agreed to release Iran's frozen assets held in Qatar and other foreign banks.

“False. The meetings have not even started yet," the senior U.S. official said.

-ABC News' Mariam Khan

Iranian state television reported Saturday that the timing of talks with the U.S. delegation will be determined after preconditions are clarified.

The state TV reporter from Islamabad said Iranian parliament speaker Mohammad Bagher Ghalibaf will first meet with Pakistani Prime Minister Shehbaz Sharif, adding that the Iranian team will need to assess the status of its preconditions during the meeting with the Pakistani mediators.

Iranian Foreign Minister Abbas Araghchi and members of technical teams will also take part in the meeting. The Iranian delegation includes economic, legal and military teams led by senior officials in those fields, the state TV added.

-ABC News' Somayeh Malekian

Pakistan’s Foreign Ministry shared a statement and video announcing the arrival of the U.S. delegation in Islamabad ahead of the Iran talks.

"A high-powered U.S. delegation led by U.S. Vice President H.E. J.D. Vance along with Special Envoy Mr. Steve Witkoff and Mr. Jared Kushner arrived in Islamabad today to participate in Islamabad Talks," Pakistan said.

The delegation was received by senior Pakistani officials on their arrival, Pakistan said, expressing "hope that parties would engage constructively, and reiterated Pakistan's desire to continue facilitating the parties towards reaching lasting and durable solution to the conflict."

-ABC News' Rashid Haddou

The Israeli Ministry of Foreign Affairs confirmed Israel has "agreed to begin formal peace negotiations" on Tuesday, following a call between the Israeli and Lebanese ambassadors to the U.S. on Friday.

The ministry added that Israel "refused to discuss a ceasefire" with Hezbollah, after the office of the Lebanese presidency said earlier Friday there would be discussion of "the announcement of a ceasefire" during Tuesday's meeting.