RIGHT NOW: Pentagon briefing on Iran conflict developments

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ARLINGTON, Virginia (CNN) -- Defense Secretary Pete Hegseth and General Dan Caine, Chairman, Joint Chiefs of Staff, are holding a briefing at the Pentagon on Iran conflict developments.

Here's the latest:

• On the ground: A mourning ceremony for Iran’s slain supreme leader has been postponed as clerics meet virtually to choose a successor. Israel said it has begun a 10th wave of strikes on Tehran while also bombarding Lebanon. Meanwhile, NATO air defense systems shot down an Iranian missile that was traveling toward Turkey’s airspace.

• Death toll rises: More than 1,000 people have been killed in Iran since the war began, according to US-based Human Rights Activists News Agency (HRANA).

• Pentagon briefing: Defense Secretary Pete Hegseth and Joint Chiefs of Staff Chairman Gen. Dan Caine will hold a briefing this morning.

• Scramble to evacuate: The US has closed embassies in three countries, reduced its regional diplomatic staffing and warned Americans to leave. The United Arab Emirates said it opened safe air corridors with its neighbors as countries rush to evacuate stranded nationals.

• Global market reaction: Asian stocks fell sharply today, with a record selloff in Seoul, as investors fretted about rising oil prices in a region heavily exposed to Middle East imports.