SAN FRANCISCO—The San Francisco Police Department is issuing warnings to attendees to not fly their drones during the city’s Fleet Week. A “No Drone Zone” has been established within five nautical miles of the center point of the air show from Thursday, October 8 to Sunday, October 11.

Those in violation of the “No Drone Zone” and are caught operating a remote-controlled aircraft, will face a fine up to $10,000 according to local and federal officials. San Francisco police officers say that the safety measure was created to protect the safety of airshow participants and city spectators.

The 35th annual Fleet Week features the well-known aerial acrobatics airshow from the U.S. Navy Blue Angels performance. The performance is slated to take place on October 10 and 11, just north of San Francisco’s Crissy Field. The Blue Angels will be rehearsing on Thursday, October 7 and Friday, October 8.

The Fleet Week event is a public event celebrating the people in the United States’ armed forces. The event is known to feature three days of festivities including a parade of ships in honor of the contributions of our servicemen and women. The event will also include ship tours, a veterans’ art show, disaster training, and discussions with leaders of community relations projects.

Fleet Week is partnering with “Off the Grid” to host an event at Pier 80, featuring musical performances, a beer garden and a food festival featuring 10 food trucks, according to Off the Grid’s Director of Marketing, Sinead Kennedy.

According to the event’s website, San Francisco Fleet Week (SFFW) was started in 1981, when Mayor Diane Feinstein led the nation in celebration of the United States’ sea services. Since the early 1980s, each year the event has been taking place in October on the Marina Green over Italian Heritage Weekend.

Fleet Week is said to generate over $10 million in revenue for the city, and attract millions of visitors each year.