Police in Santa Cruz de Tenerife have detained two people, including a 16-year-old, over alleged involvement in organising violent acts linked to the Blocus movement, just hours before calls for gatherings across the Canary Islands. The arrests came shortly before Saturday convocation messages circulated for locations including Calle Castillo in Santa Cruz de Tenerife, the Milla de Oro in Arona and Mogán in Gran Canaria. Both detainees are investigated for a suspected offence of public disorder. According to the Guardia Civil, the pair played a leading role in building the movement in Tenerife, using social media and encrypted messaging apps to encourage sabotage, looting and attacks against the police. Investigators say they identified the main people behind the structure in the province and moved to disrupt their channels before the planned actions could take place. The operation followed what the force described as intense activity on digital platforms and encrypted group chats. Investigators say closed groups were used to spread instructions for coordinated actions, including distributing maps, slogans and guidance on how to hinder police response while carrying out vandalism and looting. The Guardia Civil says the alleged procedures were imported from other Blocus-related calls, including ones reported to have appeared in France. The same investigation points to messages urging direct action against security forces and commercial premises, including burning urban furniture to obstruct police, assaults on officers and simultaneous raids on large retail sites. The crackdown is part of a wider operation against people suspected of promoting violent calls under the Blocus name. Earlier reporting by EFE said that in the previous 24 hours, ten young people, including four minors, were arrested across Spain, with detentions reported in Valencia, Barcelona, Lleida, Bilbao, Málaga and Tenerife. The latest status remains that the two detainees are held as suspects, and the case is pending judicial review as the investigation continues.