Iran updates: Iran's top negotiator says military 'ready to respond' amid Trump threats

The Persian Gulf Strait Authority (PGSA), a government body created by Iran during the ceasefire to manage crossings in the Strait of Hormuz, has announced on social media that ships must submit requests to it in order to cross the strait.

Per the announcement, ships must use the authority's website to submit the request and also present contact information for the ship to the PGSA.

It says requests must be submitted 48 hours before reaching the strait "in order to avoid delays at the entrance or exit," and that, "due to the specific conditions and the existence of some safety hazards along the passage route, and due to the need to ensure safe and secure traffic and prevent maritime accidents, it is essential to coordinate the route and announced time of passage for each ship before moving towards the strait."

On the subject of tolls, the PGSA said, "during the 60-day period, no fees will be charged from the ship, and the tariff for security, safety and environmental services, as well as the relevant Iranian insurance, will be borne by the Government of the Islamic Republic of Iran."

-ABC News' Victoria Beaule

At least 18 people have been killed and 33 people injured in Israeli strikes across 11 different towns and villages in southern Lebanon overnight, according to the Lebanese Ministry of Public Health.

The death toll is preliminary and ongoing strikes are preventing first responders from reaching victims, the ministry said.

One Israeli strike on a residential building in Al-Duwair killed at least three people, according to the health ministry and the Lebanese state news agency NNA.

Elsewhere, four Israeli soldiers were killed overnight in southern Lebanon, the Israel Defense Forces said, when an IDF tank was hit by a "suspicious target" just past midnight local time. Among those killed was a Lieutenant Colonel, officials said.

"Following the incident, the IDF struck numerous Hezbollah infrastructure sites in Nabatieh and additional areas," the IDF official said.

-ABC News' Victoria Beaule

The planned talks between the United States and Iran meant to take place on Friday have been postponed, the Swiss Ministry of Foreign Affairs announced early Friday.

Preparations for future talks are continuing in Bürgenstock, officials said, but the ministry did not share details about when they could possibly be held.

"The planned talks between the U.S., Iran, Qatar and Pakistan have been postponed," the Swiss Ministry of Foreign Affairs said in a statement. "Switzerland remains ready to facilitate these talks. The relevant preparatory work at Bürgenstock is continuing. No further information can be provided at present.

It was announced late Thursday that U.S. Vice President JD Vance would not be traveling to Switzerland for initial negotiations on the implementation of the memorandum of understanding with Iran, according to the White House.

-ABC News' Victoria Beaule

Vice President JD Vance will not be traveling Thursday night to Switzerland for initial negotiations on the implementation of the memorandum of understanding with Iran, the White House said.

"As the Vice President said at his press conference, the plans for the upcoming technical talks have not been finalized, and the U.S. delegation has been prepared to depart at the first available opportunity," a White House spokesperson said. "But the logistics of these negotiations have never been simple or predictable. As of now the Vice President is not departing tonight."

The statement went to say that the White House will provide "next steps" as soon as there is a "concrete update."

-ABC News' Hannah Demissie