London - Police have seized a drone which was flown over Wimbledon as some of the world's top players warmed up for the Grand Slam in south-west London.
Officers are investigating the incident after being alerted to a man flying a drone over the All England Club from a nearby golf course on Saturday morning.
Inspector Roger Robinson of Merton police said: "It is an offence to fly a drone within 50 metres of a structure. Anyone intending to fly a drone should give prior consideration to the surrounding landscape and any structures or venues.
"While it is not our intention to prevent people from enjoying the use of drones, it is important that regulations are adhered to. Police will take positive action against anyone committing an offence."
Roger Federer, Andy Murray, Rafael Nadal, Serena Williams and Maria Sharapova were among the top stars on site on Saturday as they hone their games ahead of Monday's opening matches.
Drones have become a security concern at major sporting events since October when a Euro 2016 qualifier between Serbia and Albania ended with the match abandoned after a drone carrying a political banner was flown into the stadium.
Players clashed when the drone and flag were pulled to the ground and the Albania players refused to play on after being attacked by Serbian fans.
Also last year, a suspected drone pilot was arrested after a device was flown over Eastlands during Manchester City's Premier League match against Tottenham.