TEHRAN, May 31 – Iran said Tuesday that it had successfully tested a solid-fuel motor for its medium-range ballistic missile known as Shahab 3, raising concerns that it could reach its enemies, including American forces in the region and Israel, with more precision.

Defense Minister Ali Shamkhani told state television the test was a success but did not say when it had been carried out.

«When you fill a missile with liquid, you have to use it quickly,» he said. «With solid fuel, a missile can be stored for years. And in addition, it makes the missile more accurate and cheaper.» (nytimes)