Britain raised its national terror threat level to "severe" on Thursday in the wake of the antisemitic stabbing attack in Golders Green, warning that another terrorist attack is now considered "highly likely" in the next six months.

The Joint Terrorism Analysis Centre (JTAC) increased the U.K. National Threat Level from "substantial" to "severe" a day after two people were stabbed in north London in what police have formally declared a terrorist incident.

Officials said the decision was not based solely on the Golders Green attack, but reflects a broader rise in extreme right-wing terrorism in Britain.

Home Secretary Shabana Mahmood called Wednesday’s violence an "abhorrent, antisemitic attack" and said the elevated threat level would be a source of concern for many, "particularly amongst our Jewish community, who have suffered so much."

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Police said officers were called to Highfield Avenue in the Barnet borough at about 11:16 a.m. Wednesday following reports of multiple stabbings.

Two men, ages 76 and 34, were treated at the scene for stab wounds before being taken to a hospital, where they remain and are "being looked after," Assistant Commissioner Laurence Taylor said.

On Thursday, police identified the suspect as 45-year-old Essa Suleiman. Suleiman is a British national born in Somalia who had a "history of serious violence and mental health issues", police say.

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The Home Office said the threat-level increase comes against a backdrop of rising terrorism in the U.K.

On Thursday, protesters gathered on Downing Street to voice concerns that not enough has been done to protect the Jewish community.

In response to the attack and a recent rise of antisemitic arson attacks in London, the government announced an additional £25 million in funding to protect Jewish communities, bringing total support this year to £58 million. Officials said the money will be used to boost police patrols and protective security at synagogues, schools and community centers.

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The funding will also support an expansion of Project Servator, which deploys specialist and plainclothes officers trained to spot suspicious behavior and identify people preparing to commit serious crimes.

Israeli Foreign Minister Gideon Saar said the British government cannot credibly claim to be combating antisemitism unless it also confronts what he described as "explicit incitement against the Jewish state."

"Hate slogans and anti-Semitic marches in the streets of London aren’t 'free speech'. They are incitement," he wrote on X. "They bring terror directed against Jews.
They must be banned. The phrase 'Globalise the Intifada', means killing Jews everywhere. It must be banned."

"This is what the British government must immediately do to fight antisemitism. Otherwise, it’s just more empty words."

Taylor said the attack has now been formally classified as terrorism and that counterterrorism officers are working with security services to establish the full circumstances and develop a complete intelligence picture.

"Whilst I must stress this investigation is at an early stage, we are working quickly to understand exactly what happened," Taylor said.

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A statement posted on X by Shomrim, a volunteer neighborhood watch group in Orthodox Jewish communities, said the suspect was seen "armed with a knife" on Golders Green Road and was detained by members before police arrived.

Detective Chief Superintendent Luke Williams said officers "swiftly Tasered and arrested the suspect before he could cause further harm," adding that investigators are "considering all possible motives" and will maintain a visible police presence in the area.

The U.K. was last at the "severe" threat level in November 2021, following the Liverpool Women’s Hospital bombing and the killing of lawmaker Sir David Amess, before it was lowered to "substantial" in February 2022.

British Prime Minister Keir Starmer condemned the violence, calling attacks on Jewish residents "an attack on Britain," while London Mayor Sadiq Khan said there is "no place for antisemitism" in the city.

Fox News' Bradford Betz and The Associated Press contributed to this report.

Two people were stabbed in north London on Wednesday in an attack that police have now formally declared a terrorist incident, prompting a major emergency response and an ongoing counterterrorism investigation.

Assistant Commissioner Laurence Taylor, the Metropolitan Police’s counterterrorism chief, said the attack has been officially classified as terrorism as investigators work to determine the motive and whether the Jewish community was deliberately targeted.

Officers were called to Highfield Avenue in the Barnet borough at about 11:16 a.m. following reports of multiple stabbings, according to the Metropolitan Police. Local and armed officers responded alongside the London Ambulance Service.

A 45-year-old man was arrested on suspicion of attempted murder and remains in custody, police said. Authorities are working to determine his nationality and background.

Two men, ages 76 and 34, were treated at the scene for stab wounds before being taken to a hospital, where they remain and are "being looked after," Taylor said.

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Police said the suspect also attacked responding officers before he was subdued with a Taser. No officers were injured.

Counterterrorism officers are leading the investigation, working with security services to establish the full circumstances and develop a complete intelligence picture, Taylor said.

"Whilst I must stress this investigation is at an early stage, we are working quickly to understand exactly what happened," Counter Terrorism Policing head Laurence Taylor said.

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The stabbing unfolded in the Barnet area, near Golders Green, which is known for its large Jewish community. Authorities have indicated the case is being treated as a potentially antisemitic incident, though motive has not been confirmed.

The stabbing unfolded in the Barnet area, near Golders Green, which is known for its large Jewish community, and police said one line of inquiry is whether the attack deliberately targeted London’s Jewish community, though a motive has not been confirmed.

A statement posted on X by Shomrim, a volunteer neighborhood watch group in Orthodox Jewish communities, said a man was seen "armed with a knife" on Golders Green Road and was detained by members before police arrived. The group claimed the suspect attempted to target Jewish members of the public — a detail police have not independently confirmed.

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Shomrim said two victims were treated by Hatzola, a volunteer emergency medical service.

Detective Chief Superintendent Luke Williams said officers "swiftly Tasered and arrested the suspect before he could cause further harm," adding that investigators are "considering all possible motives" and will maintain a visible police presence in the area.

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Williams said police are "aware of the significant distress and concern this incident is likely to cause," and will remain in the area to carry out inquiries and reassure residents.

The attack comes amid heightened concern over antisemitic incidents across the United Kingdom. Authorities are examining recent incidents in London but have not established any direct connection.

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British Prime Minister Keir Starmer condemned the violence, calling attacks on Jewish residents "an attack on Britain," while London Mayor Sadiq Khan said there is "no place for antisemitism" in the city.

Conservative MP Kemi Badenoch said, "Jewish people in our country are under constant attack. This is no longer a growing pattern. There is an epidemic of violence against Jewish people. It is now a national emergency and needs to be treated as such by the Government and public authorities."

Dov Forman, a Golders Green resident and Holocaust educator, described the attack as part of what he sees as a broader and deeply concerning trend.

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"Yet again, terror has been brought to our doorstep here in Golders Green, in the heart of London’s Jewish community," Forman said. "Earlier today, two visibly Jewish men were stabbed in what is being described as an antisemitic attack. For many, this is not being seen as an isolated act of violence, but as part of a broader and deeply troubling pattern. There is growing concern that extemist rhetoric and Islamist extremism, including calls to ‘globalize the intifada,’ has helped fuel an environment in which hatred against Jews is increasingly normalized, unchecked, and dangerously emboldened."

Israeli President Isaac Herzog said he was "horrified by yet another violent attack on Jews in broad daylight on the streets of London" and called for urgent action.

"No Jew anywhere in the world should be a target because of their faith," Herzog said, adding that authorities must act "before the next antisemitic attack occurs."

Authorities urged anyone with information to contact police as the investigation continues.

The number of antisemitic incidents reported across the U.K. has soared since the Oct. 7, 2023, attack by Hamas on Israel and the subsequent Gaza war, according to the Community Security Trust. The group recorded 3,700 incidents in 2025, up from 1,662 in 2022.

The Associated Press contributed to this report.

Police in London are on the hunt Wednesday for two masked suspects behind an attempted arson attack on a synagogue that is being treated as an "antisemitic hate crime." 

The United Kingdom’s Metropolitan Police said the individuals, who were wearing "dark clothing and balaclavas," approached the synagogue in the Finchley neighborhood shortly after midnight Wednesday and "threw two bottles, suspected to contain petrol, and a brick at the building." 

"We are aware of the significant concern that this incident will cause in the community, particularly in the wake of the arson attack in Golders Green last month," Detective Chief Superintendent Luke Williams said. "We are working with the affected synagogue and continuing to meet with community leaders." 

"I would like to reassure the community that we take incidents of this nature extremely seriously and detectives are working urgently to identify the suspects," he added. 

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Police said neither bottle ignited and no damage or injuries were reported. 

British prosecutors earlier this month charged three suspects — ages 17, 19 and 20 — in an alleged arson attack targeting Jewish community ambulances in north London. 

The March 23 incident unfolded at around 1:45 a.m. in the Golders Green neighborhood, where four ambulances operated by a volunteer emergency service serving the Jewish community were deliberately set ablaze in a synagogue parking lot.

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In the latest incident, the Metropolitan Police said no arrests have been made as of Wednesday afternoon local time. 

"If you have any CCTV, dash cam footage or information that could help officers please contact the police," Williams said.

"Residents can expect to see a heightened police presence in the area over the coming days. We have brought in additional officers and would urge anyone with concerns to speak to them," he added. 

Fox News Digital’s Sophia Compton contributed to this report.