Twelve people have been arrested following an alleged extreme right-wing terrorist threat directed at a major Islamic gathering in Suffolk, highlighting the continuing danger posed by violent far-right extremism in the UK.
The arrests were made after Counter Terrorism Policing (CTP) launched an urgent investigation into a suspected threat against the UK Ijtima event, held at Shrubland Hall between 9 and 12 July. As a precaution, organisers were advised to bring the event to an early close, although it concluded safely without incident.
Commander Helen Flanagan, head of Counter Terrorism Policing London, said officers had acted rapidly after becoming aware of what was believed to be a serious threat.
“After becoming aware of a potential serious threat towards the Islamic event in Suffolk, we have moved extremely quickly to make a number of arrests in various locations across the country,” she said.
She praised Suffolk Police for their support and thanked event organisers and members of the public affected by the operation.
“I know this news may be concerning to the public and particularly those in the Muslim community, given that we believe the intended target was an Islamic event. But as we have shown, we will not hesitate to act if there is any potential threat, no matter who or what the potential target may be.”
Commander Flanagan also reminded the public that the UK’s national terrorism threat level remains at “severe”, meaning an attack is considered highly likely.
The investigation serves as another reminder that, although Islamist terrorism often dominates headlines, violent far-right extremism has become one of the most significant domestic security threats facing Britain.
In recent years, UK security services have disrupted numerous extreme right-wing plots. According to MI5 and Counter Terrorism Policing, a substantial proportion of late-stage terrorist investigations now involve individuals motivated by racist, neo-Nazi or white supremacist ideologies.
One of the most notorious examples was the murder of Labour MP Jo Cox in 2016. She was shot and stabbed by Thomas Mair, a man with long-standing links to neo-Nazi literature and white supremacist beliefs. During his trial, Mair made clear his commitment to extreme nationalist ideology.
In 2017, Darren Osborne drove a van into worshippers gathered outside Finsbury Park Mosque, killing one man and injuring several others in what police described as a terrorist attack motivated by anti-Muslim hatred.
Far-right violence has also targeted refugees, asylum seekers and minority communities. The attempted murder of asylum seeker Erkembayev in Wales by teenager Ethan Stables, who had admired Adolf Hitler and planned a massacre at a Pride event, illustrated how online radicalisation can rapidly translate into violent intent.
The proscribed terrorist group National Action represented another significant development in Britain’s far-right landscape. Founded in 2013, the organisation openly glorified Adolf Hitler, promoted race war and celebrated the murder of Jo Cox. It became the first extreme right-wing organisation to be banned under UK terrorism legislation in 2016. Despite the ban, splinter groups and successor organisations have continued to emerge, often operating through encrypted messaging platforms and online forums.
The internet has played an increasingly important role in the spread of extremist ideology. Security experts have repeatedly warned that conspiracy theories, racist propaganda and calls to violence circulate rapidly across social media, allowing isolated individuals to become radicalised without direct contact with organised groups.
Authorities have also expressed concern over the growing number of young people being drawn into violent extremism, with teenagers accounting for an increasing proportion of those referred to the Government’s Prevent programme.
The swift response by Counter Terrorism Policing in Suffolk demonstrates the importance of intelligence gathering and cooperation between police forces in preventing attacks before they occur. While investigations continue into the alleged plot, the operation underlines that terrorism comes in many forms and that violent extremism—whether driven by religious fanaticism, racial hatred or political ideology—remains a persistent threat to public safety.
For Britain’s Muslim communities, incidents such as this are a sobering reminder that anti-Muslim hatred can escalate far beyond abusive rhetoric into planned acts of terrorism. Equally, they reinforce the message from counter-terrorism police that every credible threat will be treated with the utmost seriousness, regardless of the ideology behind it.
