New technology is being installed at London's Gatwick Airport to prevent the risk of further drone attacks.

It has been revealed the airport's spent close to $9 million on equipment to stop the threat of further chaos.

It follows three days of disruption at the airport last week, when drones were sighted near the runway affecting around a thousand flights.

But UK correspondent Gavin Grey told Tim Dower it's not just the UK that needs to look into these preventative measures.

"This is an international problem, all of the airports around the world including NZ will need to study this to prevent copycat situations."

LISTEN ABOVE AS GAVIN GREY SPEAKS TO TIM DOWER