Dale Willman

Live from NPR News, I'm Dale Willman.

Iran's state media has confirmed that the country's supreme leader, Ali Khamenei, is dead.

President Trump announced Khamenei's death Saturday on social media.

The death came during the joint military operation by the U.S.

and Israel against Iran that continues at this hour.

NPR's Daniel Estrin reports from Tel Aviv.

An emergency meeting of the United Nations Security Council was called following the start of the U.S.

and Israeli operation in Iran.

At that meeting, U.S.

Ambassador Mike Waltz celebrated the strikes.

He said they're a matter of global security because Iran cannot have a nuclear weapon.

And he laid out the Trump administration's objectives for the strikes.

U.N.

Secretary of State Antonio Guterres called for an end to the hostilities and a return to talks between the U.S.

and Iran.

Russia is condemning the strikes on Iran.

In a statement, Russia's foreign ministry warned the attacks risk destabilizing the wider Middle East.

NPR's Charles Mainz has more.

Key members of Congress are demanding a quick vote on a war powers resolution that could restrain Trump's attack on Iran.

Democrats and some Republicans are arguing that the president must seek approval from Congress for what they warn is a potentially illegal campaign.