The United States is continuing negotiations with Russia over a nuclear-weapons treaty that expired last week, the White House said Wednesday. Spokesman Robert Gibbs said negotiators continue to work to replace the expired treaty, but he said no ceremony has been scheduled to sign a new treaty. Earlier on Wednesday, Russia's foreign minister said Moscow and Washington will sign a new nuclear-weapons deal soon. The agreement that expired last Friday obliged each country to cut nuclear warheads by at least a quarter, to about 6,000, and included detailed verification procedures. President Barack Obama and Russian President Dmitry Medvedev agreed in July to each cut nuclear warheads to between 1,500 and 1,675 within seven years as part of a new treaty. --SPA