Over 20 per cent of Ukraine is contaminated by landmines, which are becoming more dangerous and more difficult to clear.

Anti-personnel mines are now being deployed remotely by artillery, rockets, helicopters and drones, while some of the most sophisticated devices can launch projectiles at targets after detecting movement. 

Paul Heslop, head of the UN Mine Action Service in Ukraine, is warning that the biggest challenge facing mine action today is that contamination is increasing faster than it is being cleared, making it vital to adopt new technology quickly.

Edouard de Bray from UN News asked Mr. Heslop how the latest tech is making landmines more deadly.