The involvement of the Ukrainian military intelligence in the terrorist act committed in "Crocus City Hall" was determined, Alexander Bortnikov, director of the Russian Federal Security Service said, Paralel.Az's Moscow correspondent reports.

Noted that 145 people died and more than 550 were injured as a result of the terrorist attack that took place on March 22 at the "Crocus City Hall" concert complex in Krasnogorsk province of Moscow.