Updated

Russia says non-nuclear weapons must be taken into account if Washington and Moscow discuss further reductions in atomic arsenals.

President Barack Obama has said he wants U.S. and Russian nuclear stockpiles reduced by one-third, more than required by a treaty that took effect two years ago.

But Russian Foreign Minister Sergey Lavrov told The Associated Press and Bloomberg news agencies Friday that talks on further nuclear reductions should also factor in new types of American weapons.

Those include so-called "prompt global strike" weapons that would let the U.S. strike targets anywhere in the world in as little as an hour.

Lavrov didn't specify how Russia wants to limit such weapons, but noted that while they don't have the "inhuman effect" of nuclear weapons, they could still impact global stability.