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
Four QPR hooligans caught on CCTV reeking havoc and attacking rival fans have been jailed.
Ex CPS boss says it was a "serious failing" by prosecutors not informing him of an investigation into allegations against Lord Janner.
Today there'll be plenty of sunshine across the British Isles with wispy cloud towards the coast.