GENEVA (AP) - The United States has confirmed that it will be unable to clinch a deal this year with Russia on a successor to their expired nuclear arms control treaty.
The U.S. mission in Geneva says in a statement released Wednesday that its delegation has left for the United States and will return to Geneva for more negotiations in January.
The statement says the two sides hope to "finalize" the new treaty next month.
President Barack Obama and his Russian counterpart, Dmitry Medvedev, had been hoping to sign a new deal before the end of the year.
The 1991 Strategic Arms Reduction Treaty expired Dec. 5.
But both countries have agreed to continue to honor its main provisions until a successor treaty is in place.