German police say they have largely evacuated activists who were occupying the village of Lützerath that is being cleared to make way for a mine but efforts were slowed by protesters hiding in tunnels. “The evacuation of the above-ground structures is largely complete,” Aachen’s police chief Dirk Weinspach told broadcaster WDR on Thursday evening. “We have cleared almost all the houses except one. The meadow has been cleared, a large part of the tree houses have been cleared. In this respect, there is not so much left,” he said. Nonetheless, he said, it was unclear how long the operation would…