German police prepared on Thursday to clear a camp of environmental activists from an area of forest that is set to be felled so that a highway can be built.
Dozens of police officers arrived at the Danneroeder forest north of the city of Frankfurt to remove about 150 activists, who have set up camp to try to prevent the felling, including building tree houses and erecting barricades.
The regional police said on Twitter that protesters were chasing construction vehicles and appealed to them to stop, saying it was dangerous. A police spokeswoman appealed to the activists to stay peaceful.
The move comes two years after German riot police cleared environmental activists from treehouses in another area of ancient forest, dismantling a protest camp set up to block a coal mining project.