"Our request for extradition was formally rejected citing the absence of an extradition treaty between our countries," the source said.
The honoring of a Nazi collaborator sparked outcries from Russia, Poland and elsewhere.
In October, Hunka was charged in absentia with the genocide of civilians during World War II by the Russian Investigative Committee. He is accused of participating in large-scale executions of at least 500 civilians in the Lvov region of the Ukrainian Soviet Socialist Republic in 1943-1944.
The Russian Prosecutor General's Office told Sputnik in December that it had requested that Hunka be extradited to Russia to face criminal charges of genocide against Soviet citizens.