US Threatens Fresh Sanctions on Russia

The US ambassador to the UN says new sanctions against Russia are set to be announced.

Also in the programme: UN peacekeeping boss on Mali violence and the mission to detect singing stars.

(Picture: Satellite image of Barzah Research and Development Center facility in Damascus, Syria, seen on April 15th 2018 a day after it was struck by U.S. and coalition operations. Credit: DigitalGlobe)