Stocks fell after reports of oil and gas tankers being fired upon. But shares of semiconductor makers weighed heavily on markets, too.

The U.S. Treasury Department on Tuesday revoked its authorization of Iranian oil sales after a series of attacks on tankers in the Strait of Hormuz this week. "Iran will only reap benefits if they exhibit good behavior,

The attacks could complicate negotiations to end the U.S. war with Iran.

Three days of public mourning in Tehran was a political spectacle Iran's leaders wanted the world to see, writes the BBC's international correspondent Lyse Doucet.

Nikki Haley, former U.S. ambassador to the United Nations and Hudson Institute Walter P. Stern Chair, joins 'Squawk Box' to discuss how to manage rising global tensions, the U.S.-Iran talks, and more.

Ceremonies for slain supreme leader Ayatollah Ali Khamenei are taking place in the sacred Iranian city of Qom. Mojtaba Khamenei has yet to appear publicly since his father’s killing. Follow for live updates.

Months after the death of Iran’s Supreme Leader, Ayatollah Ali Khamenei, on Feb. 28, his weeklong funeral is meant to demonstrate a seamless succession of power. But there has been one notable absence.

Israel accuses a 20-year-old American of spying for Iran, adding to growing concerns over Tehran's alleged intelligence recruitment inside Israel.

Thousands have flocked to the streets of Tehran as funeral processions are underway for former Supreme Leader Ayatollah Ali Khamenei and his family who were killed in February on the first day of the US-Israeli war with Iran.