Media playback is unsupported on your device Media caption The moment when the drone saves swimmers at Lennox Head

Two teenage boys were rescued by a brand new lifesaving drone in Australia while lifeguards were still training to use the device. A flying drone has dropped a flotation device to two teens caught in a riptide in heavy seas off the Australian coast in what officials describe as a world-first rescue. You might also like:

The NSW state government revealed in December that it had invested A$430,000 ($340,000 / £247,000) in a fleet of drones.
In a world's first, a drone rescues two swimmers off the coast of Lennox Head, New South Wales in Australia by dropping a safety device to them. John Barilaro, the Deputy Premier of New South Wales, praises the rescue as historic.