He added that the militants were regular servicemen and "no longer just mercenaries."
"According to our information, these are no longer just mercenaries, because there are quite a lot of fighters there who have military ranks, they are essentially representatives of the regular troops of the NATO bloc... They are still present, information about this comes from local residents," Ganchev said.
He said citizens of all NATO countries have appeared in the ranks of the Armed Forces of Ukraine, but most are the French, Germans and Poles.