At least one member of Russia's domestic security service, the FSB, has been killed following an attack on the organisation's headquarters.
A gunman opened fire on the building in central Moscow on Thursday evening and an investigation is now under way into the attack.
Ross Cullen has more.
A gunman opened fire on the building in central Moscow on Thursday evening and an investigation is now under way into the attack.
Ross Cullen has more.
IN: "The FSB said..."