MOSCOW, March 29. /TASS/. Russia’s Investigative Committee is looking into the possible involvement of Ukrainian intelligence agencies in the Crocus City Hall attack, the committee said in a statement.

"Investigators continue to carry out investigative and operational activities to figure out whether Ukrainian intelligence agencies were involved in organizing and financing the terrorist attack," the statement reads.

On the evening of March 22, a terrorist attack targeted the Crocus City Hall music venue in Krasnogorsk, Moscow Region, just outside the Moscow city limits. According to the latest data, 144 people were killed and 382 people were injured, 217 of whom received outpatient care. For the first time since 2018, Russia declared a day of national mourning over the Crocus City Hall attack. All four perpetrators have been apprehended, along with another five people suspected of involvement in the terrorist attack. The Russian Investigative Committee said that investigators had found evidence of the perpetrators’ connection to Ukrainian nationalists.