Swedish climate activist Greta Thunberg was removed from an anti-coal demonstration by police in Germany on Sunday after protesting the destruction of a village for the expansion of a nearby mine.

Climate activists have spent years protesting the demolition of the German village of Ltzerath, slated for destruction so the Garzweiler coal mine can expand. Thousands of demonstrators converged on the town in recent days, leading to clashes with authorities in riot gear.

Thunberg, 20, was among several activists removed by police after failing to comply with orders to leave the area, German newspaper Bild reported. All but two protestors were removed later, and many structures built by activists, including treehouses, were destroyed.

The village is owned by the German energy company RWE, the BBC noted. No one has lived there for more than a year.