UK Raises Terrorism Threat Level to 'Severe' After Golders Green Stabbing

The U.K. government raised its terrorism threat level from substantial to severe on Thursday following a stabbing attack that seriously injured two Jewish men, ages 34 and 76, in London's Golders Green neighborhood, an epicenter of Britain's 300,000-strong Jewish community. Police labeled the attack terrorism and arrested a 45-year-old suspect with a history of violence and mental health issues who had been referred to the Prevent anti-radicalization program in 2020. The threat elevation reflects increased danger from Islamist and extreme right-wing terrorism, with MI5 reporting over 20 disrupted Iran-backed plots in the past year and detectives investigating possible links between recent attacks and Iranian proxies. The government declared an antisemitism emergency, announcing 25 million pounds for security around Jewish sites amid a surge in antisemitic incidents since October 7, 2023, including a string of arson attacks on synagogues claimed by groups with suspected Iranian ties.

Golders Green stabbing attack and terrorism threat escalation

• ▪The Golders Green stabbing suspect's Prevent program file was closed later in 2020
• ▪The Golders Green stabbing suspect was referred to the government's Prevent program in 2020
• ▪Two Jewish men, ages 34 and 76, were seriously injured in a stabbing in Golders Green on Wednesday
• ▪Police arrested a 45-year-old man on suspicion of attempted murder in connection with the Golders Green stabbing
• ▪The U.K. government raised the country's official terrorism threat level from substantial to severe on Thursday following a stabbing attack in London
• ▪The U.K. terrorism threat level stood at severe for much of the time between 2014 and February 2022

Pattern of arson attacks and suspected Iranian proxy involvement

• ▪The number of antisemitic incidents reported across the U.K. has soared since the Hamas-led attack on southern Israel on October 7, 2023
• ▪Since the start of the Iran war on February 28, there have been a string of arson attacks on synagogues and other Jewish sites in London
• ▪Britain's MI5 domestic intelligence service says that more than 20 potentially lethal Iran-backed plots were disrupted in the year ending in October 2025

Government response and criticism over handling of antisemitism

• ▪Pro-Palestinian protests have been held regularly in the U.K. since October 2023
• ▪The U.K. government announced 25 million pounds for more police patrols and protection around synagogues, schools and community centers
• ▪Prime Minister Keir Starmer was heckled by about 100 protesters holding signs saying "Keir Starmer, Jew harmer" when he visited Golders Green on Thursday
• ▪Jonathan Hall, the government's former reviewer of terrorism legislation, called for pro-Palestinian marches to be temporarily banned

Perspective of Conservative Party leader Kemi Badenoch and former terrorism reviewer Jonathan Hall

• ▪Jonathan Hall called for pro-Palestinian marches to be temporarily banned