For the past two years, religious and humanitarian organizations have provided food and aid to migrants at a camp near Sasabe, Arizona. Just before Donald Trump took office, volunteers were told to clear off federal land.

The Samaritans and other groups that run the camp, including Humane Borders and No More Deaths, said they cooperate with the U.S. Forest Service and border officials in Arizona and hope to continue working with them under the Trump administration. Border Patrol and the Forest Service allowed them to operate the camp over the past two years, Mayer added, because it didn’t disrupt their operations — and in some ways it enhanced them.

But a few weeks before Trump took office, a liaison with the Forest Service notified volunteers that they must close the camp and clear off federal land, according to Mayer.