Roger Mosey, the Acting Director of BBC Television, tweeted to say that the Duchess of Cambridge has arrived at the Excel Centre where she will present the Sports Personality of the Year and Lifetime Achievement awards.
Pleased to confirm that the Duchess of Cambridge has arrived at Excel for #Spoty. We're delighted she's taking part in the show tonight.
More top news
Sunshine in short supply
Samples from 95 buildings in 32 local authority areas have failed fire safety tests - 100% of the cladding samples submitted.
But which member of the royal family spends the most?