The US military's controversial drone programme has been criticised for causing extensive civilian casualties, especially in Pakistan and Yemen. But now the US navy is testing its first drone.

The X-47B unmanned aerial drone is designed to make take-offs and landings aboard aircraft carriers at sea. And while it does not carry missiles, that does not mean it will not in the future.

Al Jazeera's Kimberly Halkett reports from on board the USS Theodore Roosevelt.