The Duchess of York and her daughters, the Princesses Beatrice and Eugenie, have officially opened a new, ground-breaking cancer unit at University College Hospital.
It's said to be the country's first outpatient facility specifically designed for patients aged between 13 and 24.
Paul Brand reports:
More top news
Before the final declaration on Friday, the Conservative candidate looked set to lose the City Hall race to Labour's Sadiq Khan.
The Tooting MP has been the frontrunner in the counting process ahead of Tory challenger Zac Goldsmith.
It's not just London where elections have been taking place today. There were council elections taking place across the home counties.