On match days, it is prohibited to operate all aircraft, including drones, within a range of about 5.6 kilometers and at an altitude of up to 914 meters above the ground around the stadiums, unless special permission is issued by air traffic controllers.
The FBI reported that the drones were confiscated from restricted airspace in all eleven US cities hosting the finals.
In late June, the FBI in Miami announced that it had issued 49 tickets to drone operators for unauthorized flights, and had also confiscated 54 drones in the state of Florida.
Also, the US Federal Aviation Administration banned the flying of drones over matches and associated mass gatherings throughout the United States.
In areas where crowds gather, it is prohibited to operate drones within a radius of about 1.85 kilometers, and at a height of up to 305 meters above the ground.
The Federal Aviation Administration explained that drone operators who enter restricted airspace without a permit could face fines of up to $100,000, in addition to criminal charges and the confiscation of their aircraft.
The FBI also deployed specialized teams around World Cup stadiums to monitor and disable unauthorized drones.
Last year, US President Donald Trump signed an executive order to strengthen US defenses against threat drones, and the Department of Homeland Security installed new anti-drone systems on the US-Mexico border in Texas.
