"These people are being used as cannon fodder at the front," Deputy Foreign Minister Korir Sing'Oei told AFP.
This follows the news agency's interviews with four Kenyans who were lured to Russia with promises of well-paid jobs, but once there were instead threatened with being made to sign contracts in Russian to enlist in the army.
"No Kenyan would have voluntarily agreed to something like that," Korir Sing'Oei said.
Young men from several other African countries are also reported to have been lured to the Russian front.
Kenya's Foreign Minister Musalia Mudavadi announced that he will travel to Moscow to "underline that this is something that must be stopped."
