A man urinated next to a memorial to PC Keith Palmer, the officer killed in the Westminster terror attack, as far-right protesters ran riot in central London.
The picture - taken amid violent clashes between far-right protesters and police - has sparked outrage and an appeal to identify the man.
It happened as hooligans and far-right groups claimed they were there to protect statues and memorials. MP Tobias Ellwood, who gave first aid to PC Palmer as he lay dying after being stabbed to death in the grounds Parliament by Islamist terrorist Khalid Masood in 2017, said the image of the man urinating next to the memorial was "abhorrent".
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