Elon Musk and other technology leaders have issued a stark warning about so-called "killer robots", urging the United Nations to act to prevent a high-tech arms race.
In an open letter to the UN, they say lethal autonomous weapons threaten a "third revolution in warfare".
More than 100 robotics and artificial intelligence (AI) industry leaders signed the letter.
Mr Musk has long spoken out about the dangers of artificial intelligence.
Fears about the rise of AI and the risk posed by machines have escalated in recent years as the technology's use in warfare develops.
Source : http://www.bbc.com/news/business-40996009