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US submarine sinks Iranian warship in first torpedo strike since WWII

The pace of US and Israeli strikes on Iran has been unrelenting, with both sides showing no signs of slowing the rapidly escalating conflict.
US submarine sinks Iranian warship in first torpedo strike since WWII
Jason Bellini ends live report as air raid sirens sound in Tel Aviv
Defense Secretary Pete Hegseth speaks during a press briefing at the Pentagon, Wednesday, March 4, 2026, in Washington.
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The U.S. sank an Iranian warship in international waters, Defense Secretary Pete Hegseth said Wednesday, as it intensified its bombardment with Israel of Iran's security forces and other symbols of power. Tehran vowed to completely destroy the Middle East's military and economic infrastructure — signaling the war was nowhere near over and could expand further.

The tempo of the strikes on Iran was so intense that state television announced the mourning ceremony for Iranian Supreme Leader Ayatollah Ali Khamenei, who was killed in the conflict, would be postponed. Millions attended the funeral of his predecessor Ayatollah Ruhollah Khomeini in 1989.

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In addition to striking Tehran on the fifth day of the conflict, Israel hit the Iranian-backed Hezbollah militant group in Lebanon, while Iran fired on Bahrain, Kuwait and Israel. As the conflict spiraled, Turkey said NATO defenses intercepted a ballistic missile launched from Iran before it entered Turkey’s airspace.

The war has killed more than 1,000 people in Iran and dozens in Lebanon, while disrupting the supply of the world’s oil and gas, snarling international shipping, and stranding hundreds of thousands of travelers in the Middle East.

Both sides are unrelenting in their attacks

Defense Secretary Pete Hegseth said a torpedo from a U.S. submarine sank an Iranian warship. He did not name the ship, but earlier an Iranian warship sank off the coast of Sri Lanka.

In a Pentagon briefing, Hegseth said that the Tuesday night strike on an Iranian warship was the first such attack on an enemy since World War II.

“An American submarine sunk an Iranian warship that thought it was safe in international waters,” Hegseth said. “Instead, it was sunk by a torpedo.”

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Sri Lankan authorities said 32 people were rescued from the Iranian ship and that others died.

Israel said it hit buildings associated with Iran's Basij, the all-volunteer force of the paramilitary Revolutionary Guard that conducted a bloody crackdown on protesters in January that killed thousands and saw tens of thousands detained in the country.

The Israeli military also said it hit buildings associated with Iran’s internal security command, which also has suppressed demonstrations in the past. It also pounded towns near Beirut.

Israel and the U.S. have said they want to see the Iranian public overthrow the country's theocracy, and strikes against counterprotest forces are likely part of that effort.

Iranian state television showed the ruins of buildings in the center of the capital of Tehran, with interviewees saying the attacks damaged their homes. Strikes have also been reported in the holy Shiite seminary city of Qom, targeting a building associated with a clerical panel set to pick Iran’s next supreme leader. Iranian media said it was empty at the time.

State TV has begun calling the conflict the “Ramadan war,” a reference to the holy Muslim fasting month currently taking place. But that term also suggested leaders are trying to prepare the public for a protracted conflict.

Adm. Brad Cooper, the top U.S. military commander in the Middle East, echoed that sentiment, saying: “We’ve just begun.”

Cooper said American forces have damaged Iran’s air defenses and taken out ballistic missiles, launchers and drones. Israeli military spokesman Brig. Gen. Effie Defrin said that such damage has led to a decline in launches from Iran.

Still, explosions echoed in the skies over Jerusalem on Wednesday, and Israel’s military said Iran had launched missiles toward the country, while Hezbollah sent rockets.

Iran has also struck around the region, and air sirens sounded Wednesday morning across Bahrain, home to the U.S. Navy’s 5th Fleet.

At least 1,045 people have been killed in Iran, the country's Foundation of Martyrs and Veterans Affairs said Wednesday. Eleven people in Israel have been killed. More than 50 people have been killed in Lebanon, according to the Health Ministry. Six U.S. troops have been killed.