Kerry: Patience needed for 'delicate' Iran talks

BRADLEY KLAPPER Associated Press Published:

WASHINGTON (AP) -- Secretary of State John Kerry says Congress must hold off on imposing new sanctions against Iran or risk endangering a "delicate" diplomatic effort to roll back Tehran's nuclear program.

Kerry says the U.S. promised no new economic penalties against Iran as part of a six-month interim deal to slow Iran's enrichment of uranium and other nuclear activity.

He tells the House Foreign Affairs Committee that U.S. officials need some time to work toward a final agreement that eliminates any possibility of Iran developing nuclear weapons.

Kerry says new sanctions now would risk hurting negotiations with Iran and breaking the unity of the United States and other world powers dealing with the crisis.