The SBU said this in a statement seen by Ukrinform.

The investigation established that the convicted man was a laboratory technician at a local university who had been recruited by the FSB. Russian intelligence services took an interest in him after he posted anti-Ukrainian comments on Telegram channels.

The recruited traitor was tasked with making three remote-controlled improvised explosive devices (IEDs).

The suspect was then supposed to place them in hiding spots for subsequent transfer to perpetrators of planned terrorist attacks near administrative buildings in central Kharkiv.

Following instructions from the Russian intelligence service, the agent equipped the homemade bombs with metal nuts and nails to increase their destructive impact and then fitted them with mobile phones for remote activation.

It was established that, in an attempt to conceal his activities, the traitor made and stored the explosives in the apartment of neighbors who had left the city and given him the keys to look after the property.

He disguised the completed IEDs as sports equipment and placed them in hiding spots, sending their coordinates via a messenger app to his FSB handler.

SBU officers uncovered the enemy's plot in advance, documented the agent's crimes step by step and detained him while he was setting up a third hiding spot in the courtyard of a residential complex.

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The court found the agent guilty under Part 2 of Article 111 of the Criminal Code of Ukraine (high treason committed under martial law), Parts 1 and 2 of Article 263-1 (illegal manufacture of an explosive device, committed repeatedly), Part 2 of Article 15, Part 5 of Article 27 and Part 2 of Article 258 (aiding and abetting the preparation of a terrorist act), and Part 1 of Article 263 (illegal handling of weapons, ammunition and explosives).