Doctors in rural Rwanda are able to order blood and medical supplies by text message and then have them delivered by a drone.

One of the main reasons for the introduction of the system is to try to drive down the risk of mothers dying in childbirth, which often occurs as a result of blood loss. It can often be hard to deliver blood supplies as quickly as necessary by road to rural areas of the country.

Technology company Zipline has developed a system where drones are catapulted by zip wire into the air. The drones then travel at 80mph, releasing their delivery when they reach their destination.

BBC Click finds out more.

Clarification 2 July 2020: This page has been amended to include some additional information explaining why the system was created.

See more at Click's website and @BBCClick.