According to a police post, tools for breaking into the site were seized from the protesters, who were then allowed to continue protesting peacefully, but some entered the construction site "with violence", and police intervened and arrested them. According to Tom's Hardware, items allegedly stolen from the site were found on some of those arrested, and there was damage and vandalism.
The protest continued an action that began on Friday, when protesters broke into the site, which is owned by Pure Data Centers. According to Dutch broadcaster NOS, the group at the site was Fossielvrij, which opposes fossil fuel use in data centers. The coalition plans actions in Dublin, Warsaw, Denmark and other cities.
The coalition argues that energy prices are rising and housing is being delayed because of grid congestion, and calls for "pressing the pause button" to decide democratically what AI is used for. Opposition to data centers is also growing in the US, and in Finland a criminal probe was opened into a Google subsidiary that cleared about 1,300 acres of forest without an environmental impact assessment.