A crowd of New Yorkers were filmed banding together against a man seen punching a woman in a seemingly random attack.
The attack occurred on 14th and Seventh Avenue, and was caught on camera by an apartment dweller overhead.
It comes amid a rash of reports of women being assaulted on city streets, though, in this case, the attack was thwarted by a group of complete strangers.
They are seen descending on the man within seconds of him hitting the middle-aged victim, leaving him unconscious on the pavement. The crowd then disperses into the night - as if nothing ever happened.