What's going on Heathrow really?
https://www.express.co.uk/news/uk/1230208/Heathrow-airport-drone-latest-flight-delay-Twickenham-Stoop-drone-spotted-update
"Social media users took to Twitter amid reports of a drone spotted near to the Harlequins rugby ground the Twickenham Stoop in Twickenham. One Twitter user said: โDrone spotted over & around @Harlequins Stoop ground. โRather worrying as close to @HeathrowAirport flight path @MPSHeathrow.โ
It comes a day after Heathrow was forced to suspend landings and divert flights because of a request from the RAF for an operational flight to travel through its airspace."