The Royal Navy tested an unmanned boat on the River Thames in London on Monday.
Bladerunner is an autonomous surface vehicle designed and built by ASV Global.
It was accompanied on its visit to the Pool of London by HMS Archer.
Share your views in our forum
Please join our membership scheme or sponsor an hour of local reporting so we can survive
We have three email newsletters for you to choose from:
For the latest local news and events direct to your inbox every Monday, you need our weekly email newsletter SE1 Direct.
7,000+ locals read it every week. Can you afford to miss out?
Read the latest issue before signing up