Passengers at Heathrow airport will be able to keep their liquids and laptops inside their carry-on bags, once new security equipment is installed.

The airport is investing £50m in the computer tomography (CT) security scanners, to be rolled out over the next few years.

The technology, similar to CT scanners used in hospitals, provides a clear picture of a bag's contents.

Detailed 3D images can be easily rotated and dissected by staff.

Heathrow chief operations officer, Chris Garton,