Iran live updates: Tehran plans new 'restricted zone' outside Strait of Hormuz

Overnight Israeli strikes in southern Lebanon killed at least 11 people -- among them two children -- and wounded five others, according to reports by the Lebanese state news agency NNA.

The deadly strikes occurred in the town of Kfar Rumman in the south of the country, NNA reported. Nine people were killed in an airstrike on a residential building and two people were killed in a drone strike on a car, NNA said.

There were strikes in several other towns in southern Lebanon overnight, including in Deir Zahrani, where the Israeli military issued an evacuation warning ahead of a strike on a building.

Israel has not commented on the strikes in Kfar Rumman.

-ABC News' Ghazi Balkiz and Victoria Beaule

Mohsen Rezaei, the secretary of Iran's Supreme National Security Council, said on Sunday that a restricted zone will be announced in the coming days "outside" the Strait of Hormuz, in comments carried by Iranian state media.

"We're making changes," Rezaei said. "In the coming days and weeks, we're going to announce a restricted prohibited zone outside the Strait of Hormuz, which begins from the blockade line of the U.S. Navy, including the Strait Of Hormuz, and extends to the Persian Gulf from the other side."

Few details were given on the plan, but Rezaei said any ship that enters the zone "with the intention of crossing the Strait of Hormuz" will be put on a sanctions list.

-ABC News' Jamie Dorrington

Mohammad Bagher Ghalibaf, Iran's chief negotiator and the speaker of the country's parliament, said in a speech posted to Telegram on Sunday that "the era of 'proportionate responses' is over."

The recent Iranian strikes targeting U.S. bases in the Middle East were "only the beginning," Ghalibaf said.

"The rules of the game have changed, and from now on, any transgression against the interests and security of Iran will receive a 'faster, heavier, and more painful' response," Ghalibaf said.

-ABC News' Rashid Haddou

Iran's IRGC navy said in a statement on Saturday that they have targeted three oil tankers which have been sailing through "an unauthorized route" in the Strait of Hormuz, as well as three vessels affiliated with the United States in other areas.

The IRGC navy warned all vessels in the Persian Gulf and near the Strait of Hormuz "not to be deceived" by the U.S. military and refrain from "any suspicious movement" to pass through unauthorized waterways or they would be targeted.

The U.S. has not immediately commented about the claims.

-ABC News' Somayeh Malekian