Kites, drones, and balloons have been banned from flying low over London, and the UK's busiest airport is adjusting its schedule ahead of the Queen's funeral

• Kites, drones, and balloons are banned from flying over London until the day of the Queen's funeral.
• No aircraft can fly below 2,500 feet over the city center until at least Monday, authorities said.

Kites, drones, and small balloons have been banned from flying over central London, the UK's capital city, while the country mourns the death of Queen Elizabeth II.

In a press release Tuesday, the UK's flight safety regulator pointed to a Friday announcement that no aircraft is to fly below 2,500 feet within the city area between 2:00 p.m. local time on Friday, September 9, and 7:00 a.m. on Monday, September 19, the day of the Queen's funeral.

The ban is part of overall security arrangements following the monarch's death, the Civil Aviation Authority said.

UK transport operators are bracing for widespread disruption as thousands — potentially millions — of people flock to the capital where the Queen will lie in state before her funeral on Monday, September 19.

Transport workers have canceled long-planned strikes and rail operators are laying on extra trains or extending services to and within the capital.

London's Heathrow Airport, the UK's busiest airport, warned passengers that flights could be disrupted on Wednesday afternoon "to ensure silence over central London," while a ceremonial procession carries the coffin between Buckingham Palace and Westminster Hall, where it will lie in state.

"The term 'aircraft' includes any small balloon, any kite weighing not more than two kilograms, any unmanned aircraft and any parachute including a parascending parachute or paramotor," the Civil Aviation Authority said in its Friday release.

The ban however does not apply to planes making an approach to or departing from London Heathrow or London City airport, the briefing sheet said. Additional restrictions will be issued in due course, the CAA said.

The body did not immediate respond to Insider's request for further comment.

On Tuesday, some flights departing Edinburgh airport were delayed or canceled when airspace was temporarily closed to enable the flight bearing the Queen's coffin to depart safely.

The journey to London was tracked by almost 4.8 million people, making it the most monitored in history per FlightRadar 24.