A pair of protesters were arrested at a pro-Palestine protest after calling for an "intifada."
It is believed they are the first to be detained after two of the country’s top police officers announced a crackdown on the chants following the Bondi Beach attack in Australia.
A Met Police spokesman said: "Two people who shouted slogans involving calls for intifada were arrested for racially aggravated public order offences. A third person was arrested for obstructing the above arrests."
The arrests took place at a Palestine Coalition demonstration outside the Ministry of Justice office in central London.
The Met later confirmed two further arrests for public order offences, one of which was racially aggravated, bringing the total arrested to five.
The arrests mark a change in approach from both the Met Police and Greater Manchester Police, who announced earlier on Wednesday that anyone chanting the controversial slogans such as "globalise the intifada" would face arrest.
The decision by the two police forces came in the wake of the Bondi Beach terror attack and the terror attack at Heaton Park synagogue in Manchester on October 2.
The UK’s Chief Rabbi Sir Ephraim Mirvis welcomed the decision as "an important step towards challenging the hateful rhetoric" seen on Britain’s streets.
Palestine protests have been taking place this week in London
|GETTY
Sir Ephraim had this week called for a crackdown on hate speech, saying it had to be made clear that chants such as "globalise the intifada" are "unlawful."
The Chief Rabbi, who is on his way to Australia to meet those impacted by the Sydney shootings, said: "This announcement is a most welcome development and an important step towards challenging the hateful rhetoric we have seen on our streets, which has inspired acts of violence and terror."
As they made the announcement on Wednesday, Met Commissioner Sir Mark Rowley and GMP Chief Constable Sir Stephen Watson said circumstances have changed in the wake of the Bondi Beach mass shooting.
In a rare joint statement, they said: "We know communities are concerned about placards and chants such as 'globalise the intifada', and those using it at future protests or in a targeted way should expect the Met and GMP to take action.
"Violent acts have taken place, the context has changed, words have meaning and consequence. We will act decisively and make arrests."
LATEST DEVELOPMENTS
Met Police Commissioner Sir Mark Rowley issued the warning to protesters
| PAWhile the move was welcomed by Jewish groups, Ben Jamal from the Palestine Solidarity Campaign said it infringes on the right to protest, describing it as "another low in the political repression of protest for Palestinian rights".
Mr Jamal said the word intifada "means shaking off or uprising against injustice" adding the "implication that slogans used to support the liberation of the Palestinian people are only open to interpretation by groups who have maintained complicit support for Israel’s oppression of the Palestinian people and denial of their rights is deeply problematic."
The American Jewish Committee describes the phrase as being "used by pro-Palestinian activists that calls for aggressive resistance against Israel and those who support Israel".
Protesters claim it is a call to "shake off" colonialism and for a peaceful resistance to Israel’s occupation of the West Bank and actions in Gaza.
Ben Jamal from the PSC called the ruling 'another low'
|GETTY
It is alleged that father and son Sajid and Naveed Akram opened fire on crowds of more than 1,000 people on Bondi Beach on Sunday as they celebrated the Jewish festival of light.
Sajid Akram, 50, was shot dead by police, while Naveed Akram, 24, woke from a coma on Tuesday and was charged with a raft of offences including 15 counts of murder and committing a terrorist attack.
The first funerals of the victims took place on Wednesday, including that of London-born Rabbi Eli Schlanger.
The Community Security Trust, a charity which provides protection for Jews in Britain, said the police forces’ announcement comes "not a moment too soon" as it welcomed the "more robust response to violent language on protests."
15 people were killed in the Bondi Beach attack | REUTERSProsecutors have said they will consider each case on its own merits and go back to police with advice where there is not enough evidence to bring charges.
Britain’s human rights regulator, the Equality and Human Rights Commission, has said it will monitor closely how police forces enforce the decision to arrest people using the chant.