The firm launched a similar service in the US nearly a year ago for packages weighing under 2.2kg.

As part of the UK roll-out, new MK30 drone designs have been unveiled, which are said to be quieter, smaller and lighter than previous models. They can also fly twice as far as previous Prime Air drone models and operate in more diverse weather conditions.

Amazon said it was “working closely” with both national and international regulators to develop the programme.

The firm had previously attempted a similar service with support from the UK government in 2015. But it wound down those efforts after failing to secure full regulatory approval.

“We have committed the necessary time and resources to build a safe and scalable service,” Amazon said.

“We have refined the technology, and are now building the right infrastructure to ensure the service provides the ultimate convenience for our customers. We’ve also taken great care to ensure that our drones’ design...