<div><b><span style="font-size: 1rem;">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.</span><br></b></div><div><br></div><div>Dramatic footage on social media shows a large blaze, with smoke visible all over the city.</div><div><br></div><div>Rostov's regional governor said a short circuit appeared to have caused the fire, which ignited fuel tanks.</div><div><br></div><div>The street where the building is located has been cordoned off.</div><div><br></div><div>The blaze occurred at a building belonging to the FSB's regional border patrol section in a built-up area of the city.</div><div><br></div><div>The FSB is Russia's internal security service and is responsible for counter-intelligence, border security and counter-terrorism.</div><div><br></div><div>Rostov Governor Vassily Golubev said the fire had spread over 800 sq m, causing two walls to collapse.</div><div><br></div><div>He said there was no threat that the fire would spread but that residents of nearby blocks of flats were being evacuated as a precaution.</div><div><br></div><div>RIA news agency said quoting emergency services that the area on fire was a two-storey building used for garages and storage.</div><div><br></div><div>Rostov-on-Don is the capital of a southern Russian region bordering on the Donetsk and Luhansk regions of Ukraine, currently the scene of intense fighting in the war.</div><div><br></div><div>There have been a spate of arson attacks on government buildings in Russia, such as enlistment and conscription offices, since the February 2022 invasion of Ukraine. According to BBC reports&nbsp;</div><div><br></div><div>bnbd24/fas</div>