A man has been arrested on suspicion of inciting racial hatred after Saturday’s pro-Palestine march in London.
He is now in custody, the Metropolitan Police said.
The man “filmed shouting racist abuse in Whitehall” the force said in a post on X, formerly Twitter.
About 100,000 demonstrators gathered in the capital in a show of solidarity for Palestine and to demand an immediate end to Israel’s bombardment of Gaza.
Immigration minister Robert Jenrick told Sunday Morning With Trevor Phillips on Sky News that the chanting of jihad on the streets during the protests was “completely reprehensible”.
The government wanted to make sure the police did “everything that they can to protect British Jews”, he added.
While the protest was largely peaceful, Scotland Yard said on Saturday evening 10 arrests had been made for firework-related offences, a public order offence, affray, assaulting an emergency worker and public order offences.
It added that five police officers had “received minor injuries”.