MOSCOW, August 3. /TASS/. Ukraine has transferred the money for the return of spent nuclear fuel from its nuclear power plants to Russia, a source in the Russian nuclear power corporation Rosatom has said.

"Ukraine has transferred an advance payment for the return of spent Russian nuclear fuel from its NPPs for recycling," the source said.

Asked about the price, the source said that it matched the world level. He added that similar services were being provided not only by Russian companies, but also by their European counterparts.

The first shipment to return Russia’s spent nuclear fuel from Ukraine is expected by the end of summer 2016, the source said.

"The first shipment (in the process of return of Russian spent nuclear fuel from Ukraine) will take place by the end of this summer," the source said.