A drone speedboat that could pave the way for a Royal Navy robot fleet of high-speed reconnaissance and surveillance vessels has been unveiled by defence scientists.

The 34ft boat can skim across the waves at more than 50kts to track high speed targets, while navigating and dodging other ships without the control of a human.

Naval commanders believe the Maritime Autonomy Surface Testbed (MAST) could herald a robot fleet of high-speed craft packed with sensors to carry out spy and scouting missions.