Russia and the U.S. may sign a new nuclear...
"The wordings have been mainly agreed on, some minor disagreements remain," Sergei Prikhodko said.
Disagreements over verification and control procedures prevented Moscow and Washington from signing a new deal before the New Year break to replace the Strategic Arms Reduction Treaty (START 1), which expired on December 5.
A new round of talks on the new treaty began on Monday. President Dmitry Medvedev and his American counterpart Barack Obama ordered a speedy completion of the deal last week.
Another Kremlin official said on condition of anonymity that American experts close to the negotiations have named Prague as a possible venue for the signing of the deal.
"Moscow has not rejected the choice," the official said. "The treaty is likely to be signed in a third country."
Medvedev and Obama pledged at their first meeting in April 2009 to replace the START I treaty as part of broader efforts to "reset" bilateral ties strained in recent years.