Fire at security building in Russia's Rostov-on-Don

At least one person has been killed and two injured in a fire at a building used by Russia's Federal Security Service (FSB) in the southern city of Rostov-on-Don, Russian media say.

Dramatic footage on social media shows a large blaze, with smoke visible all over the city.

Rostov's regional governor said a short circuit appeared to have caused the fire, which ignited fuel tanks.