Hundreds of lights on a 21 metre Christmas tree lit up Trafalgar Square on Thursday at a traditional ceremony celebrating links between Britain and Norway.
The tree is donated by the capital Oslo in Norway each year as a token of gratitude for Britain’s support during the Second World War, a tradition that dates to 1947.
When Germany invaded Norway in 1940, King Haakon VII escaped to London and set up a government in exile.
The lights were switched on this year by Stian Berger Rosland, governing mayor of Solo.
The 21-metre tree, cut down in a forest in Oslo, was decorated with 900 lights.