Donald Trump has arrived in the UK for his second state visit, telling reporters Britain is "a very special place".
But as he headed to the residence of the US ambassador to the UK in central London to spend the night, giant projections of the president alongside paedophile Jeffrey Epstein were beamed on to Windsor Castle by protesters.
It is there he will meet tomorrow with King Charles .
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Projection on to Windsor Castle highlights Trump-Epstein links
Four people were arrested on "suspicion of malicious communications" after the images of Mr Trump and Epstein appeared on the landmark, Thames Valley Police said.
Mr Trump has faced mounting questions about his relationship with the disgraced late billiona