The Federal Bureau of Investigation is done issuing warnings to drone operators violating temporary flight restrictions around Super Bowl venues in Miami and has started seizing the offending devices.

A drone flying inside a restricted zone in Miami Beach last night was the first to be confiscated. The bureau said in an email that it would expand enforcement operations that may include seizure, civil penalties and criminal charges.

“The warning phase of NO DRONE ZONE enforcement has concluded,” the FBI’s Miami Division said.

As of Thursday morning, there have been a total of 58 incidents involving drones that entered into restricted areas, the FBI said.