Head of the Russian Investigative Committee, Alexander Bastrykin, said Ukrainian special services' involvement in the planning of a terrorist act on the Crimean bridge was confirmed during the investigation.

Bastrykin added that there were Ukrainians, Russians, Armenians, and Georgians at the scene, and among them were those who provided a transit channel for the transportation of various goods to Russia, aiming to later transport a truck bomb across the state border.

He explained that eight out of 12 were arrested and interrogated. 

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Bastrykin had told Russian President Vladimir Putin about the preliminary results of the investigation into the terrorist act that targeted the Crimean bridge, and Putin announced at the time that the test data, in addition to operational information, indicate that the explosion on the Crimean bridge is a terrorist act.

Putin added that the attack aims to destroy Russia's vital civilian infrastructure, and it is also clear that agents, organizers, and perpetrators are from the Ukrainian special intelligence.

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A few days ago, Putin stated that the Ukrainian special services authorized and carried out the explosion on the Crimean Bridge, which was a terrorist attack aimed at destroying Russia's essential infrastructure.