Al Jazeera Staff and Reuters contributed to this report.

Counterterrorism policing in the UK investigates a range of ideological threats, including extreme right-wing plots.

Published On 15 Jul 202615 Jul 2026

A 14-year-old boy arrested by British police has been charged with a crime related to “terrorism” over an alleged plot to target local mosques.

On Wednesday, London’s Metropolitan Police disclosed the charge against the unnamed teenager, stating he was suspected of preparing an “act of terrorism” linked to “extreme right-wing” ideology.

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“This is a very ⁠serious terrorism charge ⁠against a young boy and likely to be highly concerning to the public and ⁠the local community,” said Helen Flanagan, head of ⁠counterterrorism policing in London.

Police said they did not believe the ‌case pointed to a wider threat, but added that they had contacted the mosques, located in south London’s Sutton area, and offered advice and support.

“We know this will be particularly concerning to the Muslim community and we are working closely with the venues affected to ensure they are kept updated and to provide advice, support and reassurance, and this will continue,” said Flanagan.

The boy was initially arrested on July 9 for criminal damage to a vehicle, but subsequent searches of his belongings yielded documents that prompted the charge of “conduct in preparation for giving effect to an intention to conduct acts of terrorism,” according to the Metropolitan Police.

The suspect is set to appear before a magistrates’ court in London on Thursday.

The incident marks the latest of several alleged plots or attacks targeting Muslims in the United Kingdom.

Earlier this week, British police arrested 12 people in connection with an “extreme right-wing” plot to target an Islamic gathering held in Suffolk in eastern England.

Last month, a man was charged with attempted murder linked to “terrorism” after going on a suspected anti-Muslim stabbing rampage in Edinburgh, Scotland.

Detective Chief Superintendent Nick Blackburn, who oversees local policing in south London, said authorities would work to provide “reassurance and support” to the local Muslim community after the latest arrest.

“We should not underestimate the cumulative impact of incidents of this nature on the Muslim community,” h said.

The case highlights the challenge of preventing radicalisation among young people. Authorities are working with affected communities to provide reassurance and support. The boy's court appearance later this week will be a focus of public attention.