Two members of the Golders Green, London, Jewish community were stabbed outside a synagogue.
According to a report by the Shomrim neighborhood patrol, the suspect was seen running along the main street armed with a knife, attempting to stab passersby who appeared Jewish.
Volunteers from the organization responded quickly, chased the suspect, and managed to detain him until police arrived.
Police reported that the suspect also attempted to stab police officers and was tased before being arrested. No officers were injured.
The victims, two men, one in his 70s and one in his 30s, were treated at the scene for stab wounds. They have been taken to the hospital, and both are in a stable condition.
A 45-year-old man was arrested on suspicion of attempted murder. He was taken into custody, where he remains. Police are working to establish his nationality and background.
According to Sky News, the Iran-aligned Harakat Ashab al-Yamin al-Islamiya (HAYI) has taken responsibility for the attack, but did not provide evidence. The group has claimed responsibility for several attacks on Jewish institutions in the UK, Rotterdam, Amsterdam, and Liege.
The Met Police noted that "specialist officers from Counter Terrorism Policing are leading the investigation and working with the Metropolitan Police to establish the full circumstances and any links to terrorism."
Head of Counter Terrorism Policing Laurence Taylor said: “Whilst I must stress this investigation is at an early stage, we are working quickly to understand exactly what happened."
Detective Chief Superintendent Luke Williams, who leads policing in the area, said: “Our thoughts are with the victims of this horrific attack. We are grateful to officers who swiftly Tasered and arrested the suspect before he could cause further harm.
“We are aware of the significant distress and concern this incident is likely to cause in the face of a number of incidents in the local area. A suspect is in custody, and investigators are considering all possible motives.
“Officers will remain at the scene for some time to carry out further enquiries, speak to local people and offer reassurance."
The Chief Rabbi of the United Kingdom, Rabbi Sir Ephraim Mirvis, asked the public to pray for the two victims: Nachman Moshe ben Chaya Sarah and Moshe Ben Baila.
Prime Minister Keir Starmer called the attack "utterly appalling."
He added that "attacks on our Jewish community are attacks on Britain."
He thanked Shomrim, Hatzola, and the police for acting swiftly and promised that "those responsible will be brought to justice."
Mayor of London Sadiq Khan commented: "There has been an appalling attack on two Jewish Londoners in Golders Green. The police have made an arrest, and I’d like to thank all the emergency services and heroic volunteers from Hatzola and Shomrim in the area for their swift response to this horrific incident."
He noted that he is in close contact with the Met Police, who will be providing further updates.
"London’s Jewish community has been the target of a series of shocking antisemitic attacks. There must be absolutely no place for antisemitism in society. The Met have stepped up high-visibility patrols in the area," Khan added.
He urged anyone who has any information to call the police on 101 or contact Crimestoppers anonymously.
UK Foreign Secretary Yvette Cooper commented: "My thoughts are with the two men seriously injured in the appalling antisemitic attack in north London. The Jewish community in Britain must be able to live in safety and free from fear. I want to thank Shomrim, Hatzola, and the police for their swift response."