Is it a bird? Is it a plane? No, it's dynamic remotely operated navigation equipment, more commonly known as a drone.

These unmanned devices are everywhere and they can do everything - from saving lives to delivering pizza.

But as they have taken off in popularity, the number of problems associated with drones is also on the rise.

During US President Barack Obama's visit to the UK in April, the threat from drones was considered so severe that their usage was banned across parts of London and Windsor.