Speculation rife via Twitter as Flight DL99 spotted circling via Flightradar website
Link here.
The Flightradar24.com website shows Delta Airline Flight 99, en route from Paris to Detroit, circling in clear air over East Anglia for around the last hour. It is being kept clear of flight paths and other air traffic, and is circling continuously.
Update from BBC
Last edited by ricardian; 7th Aug 2013 at 20:18.
Reason: Add new link