SBU said that Russia tasked its spy network, which the detained official was part of, with gathering data on Ukraine's awareness of Russia's frontline movement, as well as on critical infrastructure and the aftermath of Russian deep strikes into Ukraine.
Ukraine’s security service (the SBU) said the suspected Russian agent had recently been reactivated by Moscow to carry out espionage.
Ukraine has launched a series of sabotage operations in Russia, with reports that an oil tanker suspected of being part of Vladimir Putin’s “shadow fleet” was blown up in a port in northern Russia with “limpet mines”.
The official was the chief of staff of the centre and had been working for Russia's Federal Security Service (FSB), the SBU said.
The SBU has recently also accused Russian spies of orchestrating explosions in military draft offices across Ukraine in order to undermine the mobilisation effort.