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

The speaker of the Iranian parliament, Mohammad Bagher Ghalibaf, posted to X on Monday in response to Secretary of Defense Pete Hegseth's threat to sink Iranian oil tankers if Iran targeted the U.S. Navy.

"It's simple: the oil and gas production chain here is sprawling, accessible, and exposed," Ghalibaf said. "American oil and gas companies across these waters and facilities share that exposure. Strike our assets and you get struck. We've already proven it. Ask the bases that are no longer viable."

-ABC News' Victoria Beaule and Morgan Winsor

Iranian Foreign Ministry spokesperson Esmaeil Baqaei told reporters at his weekly press conference on Monday that a Qatari delegation was in Iran on Sunday "to help reduce tensions," and that an Iranian technical delegation had visited Qatar recently.

-ABC News' Victoria Beaule and Morgan Winsor

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