Amazon has been captured secretly testing delivery drones.
The US online giant has kept its programme under close wraps, barring release of a video clip in 2016.
But the Mirror recently snapped test flights at a base in the Cambridgeshire countryside.
The company, which insists it aims to use drones to deliver packages in 30 minutes, has refused to allow journalists access to the test site.
In 2013 boss Jeff Bezos – the world’s richest man – predicted drone deliveries within five years saying: “I know this looks like science fiction, it’s not. Could it be four, five years? I think so.
“It will work and it will happen and it’s going to be a lot of fun.”
But that deadline has passed and the airlifts have yet to get the go-ahead in any country.
The drones can be spotted in fields
A major stumbling block is safety with fears over what happens when the craft are out of sight of the operator and how they are able to avoid other objects in the sky.
Drones are also under scrutiny aft..