Dozens of people have been injured in clashes between South Korean protesters and police as the US military added more launchers to the missile-defence system it installed in a southern town to handle North Korean threats.
Hundreds of fake Facebook accounts spent about $100,000 (£76,000) on ads aimed at stirring up divisive issues such as gun control and race relations during the US presidential election, the social network has said.
Jennifer Peltz and Maria Sanminiatelli, Press Association
UN Security Council members have called for further sanctions against North Korea after a powerful nuclear test explosion added another layer of urgency for diplomats considering what to do about the North's persistent weapons programmes.
Houston's mayor has insisted that the US's fourth-largest city is "open for business", but with areas under water, people not yet in their homes, and billions in damage to repair, major disasters that Hurricane Harvey created are by no means resolved.