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Eight arrested as UK police probe suspected antisemitic arson attacks

By Thomson Reuters Apr 21, 2026 | 9:07 AM

By Sam Tabahriti and Sarah Young

LONDON, April 21 (Reuters) – British counter-terrorism police said on Tuesday they had arrested eight people in an investigation into a series of suspected arson attacks in London, including an alleged ​plot targeting a venue linked to the Jewish community.

Seven of the arrests ‌were made within the past 48 hours as part of a probe into a suspected conspiracy to commit arson, the police statement said.

While they did not identify a specific venue, police said an intended target was connected to the Jewish community.

The arrests come as British police have ‌been ​investigating a string of attacks on Jewish-linked sites in ⁠the capital, part of a ⁠wider rise in threats and criminal activity since the outbreak of the Israel-Gaza war in October 2023.

UK security officials have warned that Iran has sought to use criminal proxies to carry out hostile activity in the UK, and ​the pro-Iranian group Harakat Ashab al-Yamin al-Islamiyya has claimed some of the latest attacks on social media.

Police made no connection between the group and the latest ⁠arrests.

SERIES OF INCIDENTS TARGETING JEWISH SITES IN LONDON

In ⁠the latest operations, police said detectives had arrested three men ​aged 24, 25 and 26 in Harpenden, north of London, on Sunday evening before ​releasing them on bail.

On Monday, a 25-year-old man had been arrested in ‌Stevenage, north of London, while a 26-year-old and two women aged 50 and 59 had been arrested in a vehicle near the central English city of Birmingham and taken to a London police station, where they remained in custody.

On Tuesday morning, ⁠officers arrested a 39-year-old man at an address in west London under Britain’s Terrorism Act 2000. Police said the arrest had been linked to an investigation after jars containing ⁠a non-hazardous substance had ‌been found in Kensington Gardens in central London last week. ⁠Searches were continuing at a premises in east London, ​officers added.

Separately, ‌a 17-year-old British teenage boy pleaded guilty on Tuesday to ​arson not ⁠endangering life, the BBC reported, following an attack on a synagogue in north London over the weekend. The fire caused minor damage and no injuries.

Since an attack last month on several ambulances belonging to a Jewish charity, counter-terrorism police said they had arrested 23 people.

(Reporting by Sarah Young and Sam Tabahriti, additional reporting by Muvija M; ​editing by Keith Weir)