The head of the Red Cross and the United Nations on Tuesday warned that autonomous weapons that can kill people without human involvement could soon be used in conflicts and called for urgent negotiations to restrict their use.

Joint statement from agencies warns that world is 'dangerously close to crossing a moral red line' that would see 'the autonomous targeting of humans by machines'

The U.N. and Red Cross chiefs warned Tuesday that autonomous weapons, capable of killing without human control, could soon be used in war and urged urgent...