A group of approximately 20 youths attacked a local synagogue in the London suburb of Stamford Hill over the weekend, yelling threats, beating worshipers and vandalizing property, according to IsraelHatzolah's official twitter account.
One witness belonging to the "Ahavat Torah" congregation described the mob as shouting "we will kill you" as they proceeded to physically assault the worshipers inside the synagogue and tear apart prayer books.
Another Jewish local who had passed by the scene rushed inside, grabbing one of the suspects with the intention of bringing him to the police, but was quickly overwhelmed by the other attackers and suffered strikes to the face, losing a tooth.
A spokesmen for local law enforcement said that the police views the assault on the heavily Jewish populated Stamford Hill community gravely and that they have already detained four suspects who say they were involved in the incident.
The assault on the north London synagogue comes days before the opening of a hotline dedicated to providing advice and support to victims of anti-Semitism.
According to the CST, a charity meant to monitor and provide solutions to acts of anti-Jewish behavior in the UK, the hotline, called the Campaign Against Anti-Semitism, is an answer to numerous anti-Semitic incidents that have plagued Britain's Jewish community.
In February of 2014, the Community Security Trust issued a report that showed the number of anti-Semitic incidents in the UK more than doubling from 1,168.
Apart from physical violence and damage to property, reports of anti-Semitism also included increased internet based abuses such as hate speech on social media websites.
Close to 150,000 of Britain's estimated 286,000 Jews who live in and around London saw a 137% increase in anti-Semetic incidents reaching 583.
Meanwhile the second-largest Jewish center, Manchester, had a 79% rise to 309 incidents. The CST also noted anti-Semitic incidents in 89 other locations around the UK.