Removing casualties from remote battlefields is often dangerous and highly skilled work for helicopter pilots.

But a prototype air ambulance drone developed by Tactical Robotics is hoping to make these evacuations safer.

Part funded by the Israel's Ministry of Defence, the AirMule, has a top speed of 120 knots (140 mph, 190 km/h) and can reach an altitude of 12,000 ft (3,600 m).

BBC Click's Jen Copestake reports.

Watch more clips on the Click website. If you are in the UK you can watch the whole programme on BBC iPlayer.