Nalyvaichenko said that this information had been received during interrogations of the SBU Alpha Special Forces personnel.
"They gave specific evidence about the location of foreign sniper teams who were aiming at the protesters and ... personnel of the Ministry of Internal Affairs," he said.
Nalyvaichenko said that law enforcement officers had documented proof of their illegal activities in Ukraine.
"As part of these proceedings we have titles, last names, copies of passports, dates of their entry and exit, which connections they used, in which public premises they stayed, and how President Putin's adviser Surkov coordinated them in Kyiv ...," he said.
Nalyvaichenko also noted that three groups of the Russian FSB employees came to Kyiv in December 2013 and February 2014 and organized and planned the crack downs of the Euromaidan activists.
In addition, he stressed that a large number of law enforcement officers and SBU staff turned out to be traitors and worked for foreign intelligence services.
In particular, the former head of the Security Service in Crimea Petro Zyma tuned out to be an FSB employee and helped Russia to carry out the annexation of the peninsula.
As of now, about 100 former employees of the SBU, 10 of which are arrested, are suspected of treason.