Hello. Dozens of people are feared dead after a military helicopter and a commercial jet collided over Washington DC. We'll have the latest. US President Donald Trump has signed an executive order to build a huge migrant detention camp in Guantanamo Bay. And in the UK, King Charles is at the centre of a row over the renaming of a Royal Navy submarine in an effort not to offend France.

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Search teams scour debris after jet collides with helicopter over Washington DC

Rescue teams search jet debris in the Potomac River. Credit: Getty

A plane carrying 64 people has crashed into the Potomac river after colliding with a military helicopter carrying three soldiers over Washington DC. At least 19 bodies have been recovered so far, reports say. The American Airlines flight from Wichita, Kansas, was approaching Ronald Reagan National Airport at around 21:00 (02:00 GMT) on Wednesday when the incident took place. The plane was carrying several US and Russian figure skating team members among its passengers. Pictures show search teams at the site and debris from the jet in the freezing river.

• What we know: All the facts as we get them on the collision over Washington DC

• Watch: Rescuers search through wreckage and witness describes seeing 'white flare' as plane and helicopter collide

• Busy airspace: We look at the freedom military pilots have and the precautions they are expected to take over DC's congested skies.

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How a US freeze upended global aid in a matter of days

A child holds water in Al-Hol refugee camp in northeast Syria. Credit: Getty

It was early Saturday when aid staff at the Al-Hol camp in northeast Syria - which holds thousands of women and children - were told: "Stop work." The order came after President Trump froze all US foreign assistance, calling for a review to ensure that it abided by his "America First" foreign policy. Atul Gawande, a former senior official at the US Agency for International Development (USAID), said his "immediate reaction was, this is catastrophic". BBC State Department correspondent Tom Bateman looks at how the swipe of a pen in Washington DC lead to repercussions around the world.

And finally... in the UK

The BBC has been told that King Charles was involved in the decision to change the name of a new Royal Navy submarine from HMS Agincourt to HMS Achilles, over concerns the reference to the medieval battle England won against France in 1415 may offend the French. The original name was chosen during the reign of Charles's mother, Queen Elizabeth II, by the then-Conservative government.