Smoke rises from a Russian Federal Security Service building in Rostov-on-Don, Russia, Thursday, March 16, 2023. A building used by Russia’s Federal Security Service, or the FSB, caught fire on Thursday in the southern city of Rostov, some 70 kilometers (43 miles) from the border with Ukraine. Russian state media reported that one person died and two were wounded, citing local emergency services and noting that the building belonged to the FSB’s regional border patrol section. (AP Photo) Expand

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Smoke rises from a Russian Federal Security Service building in Rostov-on-Don, Russia, Thursday, March 16, 2023. A building used by Russia’s Federal Security Service, or the FSB, caught fire on Thursday in the southern city of Rostov, some 70 kilometers (43 miles) from the border with Ukraine. Russian state media reported that one person died and two were wounded, citing local emergency services and noting that the building belonged to the FSB’s regional border patrol section. (AP Photo)

Smoke rises from a Russian Federal Security Service building in Rostov-on-Don, Russia, Thursday, March 16, 2023. A building used by Russia’s Federal Security Service, or the FSB, caught fire on Thursday in the southern city of Rostov, some 70 kilometers (43 miles) from the border with Ukraine. Russian state media reported that one person died and two were wounded, citing local emergency services and noting that the building belonged to the FSB’s regional border patrol section. (AP Photo)

Smoke rises from a Russian Federal Security Service building in Rostov-on-Don, Russia, Thursday, March 16, 2023. A building used by Russia’s Federal Security Service, or the FSB, caught fire on Thursday in the southern city of Rostov, some 70 kilometers (43 miles) from the border with Ukraine. Russian state media reported that one person died and two were wounded, citing local emergency services and noting that the building belonged to the FSB’s regional border patrol section. (AP Photo)

By Associated Press Reporters

A building used by Russia’s Federal Security Service has caught fire in the southern city of Rostov, about 40 miles from the border with Ukraine.

Russian state media, citing local emergency services, reported that one person had died and two were injured.

The building belonged to the regional border patrol section of the Federal Security Service, or FSB, the media reports said.

Footage on social media appeared to show fire engulfing parts of the building, with plumes of thick smoke rising over the city.

Regional governor Vasily Golubev said an electrical short circuit caused the fire, which in turn “caused containers of fuel and lubricants to explode”.

Citing anonymous police sources, local media had previously reported that the fire was caused by the detonation of ammunition in a warehouse.