Ten Missing in US Naval Collision

The US navy says a search and rescue operation is taking place off the coast of Singapore, after one of its ships collided with an oil tanker near the Strait of Malacca. The USS John McCain - a guided missile destroyer - was damaged in the incident.

The BBC has just launched a new language service in Nigeria – BBC Pidgin. We learn more about the service and what it plans to offer.

A group of more than a hundred specialists are calling on the United Nations to ban the development and use of killer robots. They've written a letter which is being launched at the opening of the International Joint Conference on Artificial Intelligence in Melbourne today. They warn that "Once developed, lethal autonomous weapons will permit armed conflict to be fought at a scale greater than ever, and at timescales faster than humans can comprehend.