Deputy Foreign Minister Sergei Ryabkov spoke two days after the company that built the plant, a politically charged project that faced repeated delays, said the reactor had begun operating at a low level for tests before bringing it on line.
"The final launch of Bushehr is a matter of the coming weeks," state-run RIA quoted Ryabkov as saying. "But this is a longstanding project and so I would refrain from naming concrete dates -- but we are already on the threshold of the final launch of the reactor."
The United States and other Western nations for years urged Russia to abandon the project, fearing it would help Iran develop nuclear weapons. But an agreement obliging Tehran to repatriate spent nuclear fuel to Russia eased those concerns.