Federal forest officials began clearing thousands of acres of forest just outside of Bend, Ore., where more than 100 people live in RVs and cars — a move that one advocacy group called “the largest eviction of a homeless camp in recent history.”

Dozens of homeless people who have been living in a national forest in central Oregon for years were being evicted Thursday by the US Forest Service, as it closed the area for a wildfire prevention project that will involve removing smaller trees,

The closure at Deschutes National Forest was for a fire-prevention project, but advocates worry the displaced will have nowhere to go.