Tony Blair's daughter was held up at gunpoint by two men during an attempted robbery on Monday evening.
Kathryn Blair, 25, was not hurt in the incident as she walked down a central London street with her boyfriend and a group of friends.
Scotland Yard confirmed an incident involving two male suspects with a gun took place in Ivor Place, Marylebone, at 8.30pm on Monday night.
The Blair family were seen at the wedding of Euan Blair last weekend.
More top news
It comes after shadow chancellor John McDonnell made a surprise U-turn on the Tory budget vote which is due later today.
Georgia Williams could have been saved if police had not missed several chances to catch her killer, a review found.
Jennifer Connell complained the injury made it difficult for her to "hold a plate of hors d'ouerves" at a party recently.