Is there an AI stock market bubble, and is it ready to burst?

Despite the Iran war, rising inflation and worries about rising government debt, US stock markets continue to hit all-time highs this year. That's largely driven by the huge boom in investment in Artificial Intelligence.

The apparent mismatch between sky high stock market valuations and the real economy is beginning to set off some alarm bells ringing among investors. BBC's Samira Hussain reports from Wall Street.

Watch: Massive hailstones pound Denver in powerful storm

Strong winds, intense rain and hailstones the size of golf balls pelted the city and the surrounding area on Monday.

Why Fifa is being investigated over World Cup ticket prices

New York and New Jersey are looking into the association after fans have reportedly been "misled" over ticket sales and seat locations.

Watch: UFC arena construction begins at White House ahead of fight

The massive structure will host a cage fight as part of celebrations marking the 250th anniversary of the US Declaration of Independence.

Watch: Nasa shows renderings for planned permanent moon base

The plans include permanent human habitation on the Earth's only natural satellite by 2032.

Protests escalate outside ICE facility over alleged inhumane conditions

The Department of Homeland security said in a statement that the detainees receive "medical, dental, and mental health services as available".

Watch: Texas police rescue baby from car stuck in floodwater

Texas police say a father tried to cross a flooded road after heavy rains inundated the area, urging motorists not to do the same. Neither the driver nor the baby was hurt.

'Football is life': Ted Lasso actor signs with US pro football team

Cristo Fernández, well known for playing a footballer in the popular TV series Ted Lasso, tells the BBC it is a "dream come true" to sign with a US pro football team.

Watch: Trump to have annual medical exam ahead of 80th birthday

The BBC’s Bernd Debusmann explains the routine medical check of the president of the US.

US marks Memorial Day with wreaths, bagpipes and salutes

In ceremonies across the nation, the Americans who died while serving in the US military are remembered.

Orange County residents react to evacuation after chemical tank explosion threat

Orange County residents had to evacuate following the threat of a failing chemical tank exploding.

What are the Enhanced Games - or the 'Olympics on steroids'?

The inaugural Enhanced Games will feature dozens of elite athletes using performance-enhancing drugs.

Moment SpaceX rocket explodes in the Indian Ocean after splashdown

Elon Musk's SpaceX has successfully launched its Starship V3 rocket, which landed in a planned fiery explosion on Friday.

Watch: Miley Cyrus receives her star in the Hollywood Walk of Fame

Actress Anya Taylor-Joy and designer Donatella Versace delivered tributes to the singer during the ceremony.

Fighter jet shoots down UFO in newly declassified video

Experts say the videos released by the US government give no evidence of alien technology or extraterrestrial life.

Residents wade through flood waters and submerged cars in New York City

Mayor Zohran Mamdani said the intense rainfall, which flooded some homes, had overwhelmed the city's sewer system.

Fans react to Stephen Colbert’s final show

The late-night host will appear behind his CBS desk for the final time after the network announced last summer that the show would end after 11 seasons.

Moment Cybertruck driver intentionally drives into Texas lake

Rescuers removed the vehicle from near the shoreline and police arrested the driver, who was attempting to use the vehicle's "wade mode".

New video captures engine ripping off cargo plane in deadly Kentucky crash

As part of the ongoing investigation into the crash that killed 14 people, officials released footage showing the engine detaching during takeoff.

Police officer catches baby dropped from window of burning home

Body cam footage shows the moment a baby was thrown from a window and caught by an officer during a house fire.

Trump: White House ballroom to be 'drone-proof' with military complex

The president, who claims the building is a ‘gift’ to the US, says it will include a hospital and research facilities.