"A resident of the Kiev region, Tsilyk ... confessed that he was recruited and acted on the instructions of Lieutenant Colonel Maksim Leonidovich Kirilovts, born in 1988, the head of the sector - an employee of the operational group of the special reserve of the Main Intelligence Directorate of the Ministry of Defense of Ukraine," the FSB said.
The attack was planned to be carried out by detonating two self-made devices with a total mass of 1.5 kg in TNT equivalent.
To equip caches and transfer explosive devices to Russia, Tsilyk, accompanied by Kirilovts and two military intelligence officers, illegally crossed the Russian border, the department said.
“During his second arrival in Russia, Alexander Tsilyk was detained red-handed with weapons on his way to the scene of the crime,” the service said.
In addition, the FSB detained two SBU agents - Zinovy Kovyla and his son Igor, who arrived in Russia to collect information, photograph and film strategically important life support enterprises.