The National Police have dismantled Spain’s first accelerationist terrorist cell, the most extreme version of white supremacy, in Castellón, after arresting three people in connection. The people investigated are linked to The Base, an organization created in 2018 to achieve white supremacy through terrorism and which has developed an international network of paramilitary cells with the aim of carrying out attacks.
The detainees had intensified their extremist rhetoric in recent months and encouraged acts of violence, even explicitly declaring that they were prepared to carry out selective attacks to collapse Western democratic institutions, as the National Police stated in a statement. Investigators confirmed that they were in a position to carry out attacks and that they had already undergone numerous tactical training using paramilitary techniques and materials.
The investigation began in early 2025, when counter-terrorism and extremism agents discovered a highly radicalized individual who aligned with The Base’s supremacist assumptions. It was later discovered that it was a cohesive cell that included two other highly extremist individuals whose lifestyle depended on the principles of the terrorist organization.
The detainees are accused of crimes of belonging to a terrorist organization, recruitment, indoctrination and training for terrorist purposes, as well as illegal possession of weapons. The cell leader went to prison.
Recently, detainees have hardened their rhetoric and are considering violent acts, even openly declaring their willingness to carry out selective attacks for the cause.

The agents explain that the racist cell used social media networks to recruit new fighters, glorify violent actions carried out by other terrorist organizations, and share audiovisual content of an accelerated nature with other users. Moreover, the leader of the Spanish cell was in direct contact with the founder of Al-Qaeda, who a month earlier had issued a call to unite internationally expanded cells and carry out selective attacks in order to collapse Western democratic institutions.
This, combined with the array of weapons spotted, prompted agents to launch a police operation in the early hours of last Tuesday to arrest the leader and two of his top collaborators. Nine weapons, including two firearms, ammunition, about twenty knives, military tactical equipment used in training activities, materials and documents of a racist nature, propaganda from the organization The Base, neo-Nazi paraphernalia, and documents from terrorist organizations were seized in five searches carried out in the province of Castellón.
The operation was led by the Office of the Public Information Commissioner with the support of the Information Brigade of the District of Castellón, under the supervision of the Office of the Prosecutor of the National Court, and involved Europol agents. The investigation is still ongoing under the direction of the President of the Central Investigative Court No. 6 of the National Court, who ordered the imprisonment of the cell leader.