Russia believes that a new strategic arms reduction deal with the US should be signed before cuts in tactical nuclear weapons are discussed, the foreign ministry said on Thursday.
"As to tactical nuclear weapons, we share the view expressed by (US Assistant Secretary of Defence for International Security Affairs) Alexander Vershbow that the discussion of this issue is premature," ministry spokesman Andrei Nesterenko said.
"It would be more logical to finish work on a new agreement to replace the START treaty first," he said.
The next round of arms reduction talks between Russia and the US is due later this month when Secretary of State Hillary Clinton visits Russia.
President Dmitry Medvedev earlier said a strategic arms reduction treaty should be ready by December.
According to a report published by the US State Department in April, as of Jan 1, Russia had 3,909 nuclear warheads and 814 delivery vehicles. This included ground-based intercontinental ballistic missiles (ICBM), submarine launched ballistic missiles (SLBM) and strategic bombers.
It said the US had 5,576 warheads and 1,198 delivery vehicles.
The Strategic Arms Reductions Treaty (START 1), signed in 1991, makes it incumbent on Russia and the US to reduce nuclear warheads to 6,000 and their delivery vehicles to 1,600 each. The treaty expires Dec 5.