The Federal Emergency Management Agency (FEMA) threatened to arrest anyone flying drones over the Colorado flood damage over the weekend, even those volunteering with the relief effort.

On Saturday, FEMA grounded Colorado company Falcon UAV — a drone manufacturer that had been helping local authorities map the disaster area in near-real time — and threatened to arrest anyone flying a drone over the disaster area, IEEE Spectrum reports.

Drone industry representatives, plagued by the negative stigma drones have earned from their service in war, have been eager to promote the non-lethal uses of unmanned aerial systems.