PIA709 (a B777 from Lahore to Manchester) declared an emergency earlier. I picked it up on FlightRader over Doncaster. It's now heading out over the East coast near Whitby! It would have had less distance to go to get to Manchester. What's all that about?
Now all the stupid speculation will start. The Beeb and Sky will be scrambling OB vehicles from Woolwich to Stansted. 'Aviation Expert' phones will be red hot. Range Rovers leaving Hereford at speed would be a true barometer of any big incident