"An 18-year-old was arrested in north London after video showed a passerby assaulting two men in ultra-Orthodox garb on a sidewalk in the city.
In the video, the attacker can be seen continuously punching the two men until they are knocked down.
The pair required medical treatment but were released from a hospital hours later.
The Shomrim organization, which released the video, helped police track down the alleged assailant, according to the Jewish Chronicle.
The attack, which took place in the Stamford Hill neighborhood of London on Wednesday night, is being probed as a hate crime.
UK Prime Minister Boris Johnson tweeted that he was 'appalled' by video of the incident, and thanked police 'for making a swift arrest.'
'This attack is a terrible reminder, on Holocaust Memorial Day, that such prejudice is not consigned to history, but remains a very real problem in society,' he added. 'We must stamp out antisemitism.'...”