• Four men arrested in London on suspicion of spying for Iran.
• The suspects include one Iranian national and three dual British-Iranian citizens.
• Arrests are part of a long-running counter-terrorism investigation.
• Six others were detained on suspicion of assisting the offenders.
• Concerns have been raised about threats to the Jewish community in the UK.

British police have arrested four men in London, suspected of spying for Iran in a case related to the surveillance of London's Jewish community. The arrests took place in the early hours of Friday morning across multiple locations, including Barnet and Watford, and involved one Iranian national and three individuals with dual British-Iranian citizenship, according to Reuters, South China Morning Post, and CBS News.

Counterterrorism police have stated that this investigation is ongoing and has raised concerns, particularly among the Jewish community in the UK. Commander Helen Flanagan of the Metropolitan Police emphasized the need for vigilance within the community, urging individuals to report any suspicious activity, as authorities work to disrupt such threats, as noted by South China Morning Post and Reuters.

The police have also reported that six additional individuals were arrested during the operation for allegedly assisting the offenders. This incident underscores ongoing concerns regarding Iranian espionage activities related to various groups in the UK, as outlined in a broader context of intelligence threats posed by Iran, according to CBS News.