US military helicopters fly over London ahead of Trump visit

A presidential helicopter and a fleet of Chinooks have been spotted flying over central London today (May 31) ahead of Donald Trump's state visit next week.

"Several US helicopters, including the Marine One presidential helicopter and Chinooks, were seen flying over central London today lunchtime while they practiced security arrangements," the filmer wrote online.

The video was captured from Regent's Park.

A multi-million-pound security operation is underway ahead of the president's three-day trip.