Iran says it has successfully tested an upgraded version of its longest-range solid-fuel missile.

State TV reported the news Wednesday without providing details on the test of the Sajjil-2 missile.

The Sajjil is a solid fuel, high-speed missile with a range of about 1,200 miles (1,930 kilometers), placing Iran's sworn enemy Israel well within range and reaching as far away as southeastern Europe with greater precision than earlier models.

Iran has intensified its missile development program in recent years, causing concern in the United States and its allies at a time when they accuse Tehran of seeking to build a nuclear weapon. Iran denies the charge and says its nuclear program is aimed at generating electricity.