Russia on Wednesday slammed Finland for refusing parliament speaker Sergei Naryshkin a visa, the first time he has been denied entry to the European Union after being put on a blacklist over Ukraine.

"Without question we consider this outrageous," Kremlin spokesman Dmitry Peskov was quoted as saying by Russian agencies, pointing out that Naryshkin was to head Russia's delegation to an international event of the Organization for Security and Cooperation in Europe.