Patrick Hutchinson, a protester, carries a suspected far-right counter-protester who was injured, to safety, near Waterloo station during a Black Lives Matter protest. Reuters

A protester carries an injured counter-protester to safety, near the Waterloo station during a Black Lives Matter protest. Reuters 

Then he saw the man who had uttered them — a black protester emerging from the melee carrying an injured white man in a 'fireman's lift' over his shoulder. The picture he took has gone viral on social media and featured in news bulletins, capturing a moment of high drama that jars with the broader narrative — of anti-racist and far-right protesters fighting each other.

"I saw a skirmish and someone falling to the ground," Martinez recalled of the moment near Waterloo Bridge, in central London, as he covered Black Lives Matter anti-racism protests that have flared up in the city.

Martinez recalled that, after hearing someone say "That's not what we do!," he suddenly saw a white man being carried on a black person's shoulders through the crowd.

Reuters