UK Charges Two Iranians Over Foiled Chlorine Bomb Plot Against Manchester Synagogue

Key points

• Salam Ahmadyan (36) and Rahman Salehi (34) were arrested in Manchester on September 20, 2026, and charged with 'engaging in conduct in preparation for terrorist acts.'
• Prosecutors allege the men acquired a document titled 'Steps for Making [a] Powder Chlorine and Car Brake Oil/Fluid Bomb' and video instructions for assembling an improvised explosive device.
• The suspects allegedly conducted 'hostile reconnaissance' on Manchester's Jewish community, specifically identifying the Jewish Museum and the Heaton Park Synagogue as potential targets.
• The Heaton Park Synagogue was the site of a knife and gun attack on October 2, 2025, during Yom Kippur, which killed two worshippers.
• Both men arrived in the UK via small boats; Salehi was granted asylum in 2023, while Ahmadyan has a pending asylum claim.
• The men are accused of contacting a third party, believed to be an Iranian national operating from within Iran, who allegedly directed the plot and provided bomb-making instructions.

Background

This case occurs one year after the October 2, 2025, attack on the Heaton Park Hebrew Congregation Synagogue in Manchester, which killed two people during Yom Kippur. The timing of the arrests, on the eve of Yom Kippur 2026, has heightened anxiety within the UK's Jewish community. This incident follows a series of antisemitic attacks in London earlier in 2026, including a knife attack in north London and assaults on synagogues. The charges also coincide with a separate security incident at RAF Fairford, where five British nationals were arrested on September 27, 2026, on suspicion of preparing a terrorist act. While Prime Minister Andy Burnham alleged Iran played a part in the RAF Fairford incident, Iranian officials have denied involvement. British counter-terrorism officials have explicitly stated that the Manchester plot and the RAF Fairford incident are not connected, though both highlight 'wider threats being projected into the UK from Iran.'

How outlets are covering it

All four sources (CBS News, CNN, The Guardian, and NBC News) agree on the core facts: the identities of the suspects, the nature of the charges, the alleged chlorine bomb plot, and the connection to a third party in Iran. However, they differ in emphasis. CNN and The Guardian provide detailed court proceedings, noting that prosecutor Mark Luckett specified the suspects acquired a document on making a chlorine bomb and conducted reconnaissance on specific targets like the Jewish Museum. The Guardian highlights that Salehi lived in Germany for five years before arriving in the UK. CBS News and NBC News emphasize the broader context of Iranian-linked threats, linking this case to the separate RAF Fairford incident and quoting Prime Minister Andy Burnham's allegations against Iran, while also noting Iranian denials. All sources agree that British police, specifically Deputy Assistant Commissioner Vicki Evans, stated there is no ongoing threat to the public from this specific plot.

Why it matters

This case underscores the persistent and evolving security threats facing Jewish communities in the UK, particularly in the wake of the 2025 Manchester synagogue attack. The alleged use of a homemade chlorine bomb and the involvement of a third party in Iran suggest a coordinated, external threat rather than isolated domestic extremism. The timing, coinciding with Yom Kippur and the one-year anniversary of the previous attack, has intensified fears within the community. Furthermore, the case highlights the intersection of counter-terrorism and immigration policy, as both suspects arrived via small boats, a route that has become a major political flashpoint in the UK. The simultaneous occurrence of this plot and the RAF Fairford incident has raised questions about the scale of Iranian-linked threats in the UK, even as officials insist the two cases are unrelated.

What to watch

The two suspects, Rahman Salehi and Salam Ahmadyan, are currently remanded in custody. They are scheduled to appear at the Central Criminal Court (Old Bailey) in London on October 23, 2026, for a hearing. British authorities have stated that there is no ongoing threat to the public from this specific plot, but counter-terrorism policing continues to monitor for 'wider threats being projected into the UK from Iran.' The investigation into the third party in Iran remains ongoing, and the UK government is likely to continue emphasizing its stance on Iranian involvement in terrorism, despite Tehran's denials.