The lights on Trafalgar Square's Christmas tree have been switched on.
Princess Astrid of Norway did the honours, lighting the 69th tree to be sent to Britain from Norway.
The annual tradition dates back to 1947 and is a gift from Oslo to thank the UK for its support during World War II.
The tree itself is a spruce measuring around 20 metres high. It was cut down in the forests of Norway after months of careful selection and travelled to the UK by sea and lorry.
A team of people then decorated it in a Norwegian style with the lights arranged vertically.
It will stand in Trafalgar Square until January 6.