Hello. The identities of those killed in the Washington DC air crash are beginning to emerge, as investigators begin analysing the jet's black box recorders. From Kyiv, the BBC's Sarah Rainsford reports on the tens of thousands of Ukrainians who have gone missing in war, and one woman's search for her parents. Meanwhile, technology editor Zoe Kleinman looks at the rise of AI-written books and their impact on creatives, after receiving one that bears her name - and mimics her writing.

TOP OF THE AGENDA

Who are the victims of the Washington DC plane crash?

Victims include (left to right) flight attendant Ian Epstein, helicopter pilot Andrew Eaves and civil rights lawyer Kiah Duggins. Credit: Facebook and Howard University

Top figure skaters and young competitors, families and lawyers are among those identified as being on the American Airlines flight that collided with a helicopter over Reagan National Airport. Olivia Ter, 12, the youngest-known victim, was among those returning to the capital from a skating camp in Kansas. Professor Kiah Duggins, a civil rights lawyer, was due to begin teaching at Howard University in the autumn. Another lawyer, Elizabeth Keys, died on her birthday. And the family of flight attendant Ian Epstein have said he was known for his ability to make people smile. Investigators have meanwhile recovered the black box recorders from the jet, which could offer crucial clues into what went wrong.

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

• Congested skies: The US capital's airspace is among the most controlled in the world. How could this crash happen?

• Watch: Figure skating performances of DC plane crash victims

WORLD HEADLINES

BEYOND THE HEADLINES

The AI-written books 'terrifying' creatives

Zoe Kleinman reads her AI-generated book. Credit: BBC

For Christmas our technology editor Zoe Kleinman received an interesting gift from a friend - her very own "best-selling" book. "Tech-Splaining for Dummies" bears her name and photo on its cover, but she did not write it. The book was generated by an AI as a joke gift, using a few simple prompts. But, she says, in some parts it really does sound like her.

And finally... in the UK

When three-year-old Lily-Rose called out "Hello, princess" after seeing the Princess of Wales in the distance, she got a wave and a smile in return. But the best was yet to come - moments later, Catherine's royal car stopped and she made a beeline for her young fan. Watch the heartwarming moment.