A medium-range missile with improved accuracy compared to its predecessors has been tested by Iranian forces, a high-ranking military official said in comments reported by the Tasnim news agency.Testing of the rocket with a range of 2,000 kilometers had taken place two weeks earlier, the army commander added.Details on Iran's weapons tests cannot normally be verified as they take place without independent observers.The tests underscore ongoing fears in the West that Iran could launch one of its Shahab-3 models, which supposedly have a 2,000-kilometer range, in a missile attack on its archenemy, Israel.President Hassan Rowhani, however, has insisted that Iran has no intention of using the rockets against neighbouring countries and that they serve only defence purposes.While concerns over Tehran's intentions had abated since the implementation of a nuclear agreement with the West in January, tensions once again rose after Iran tested ballistic missiles in March, two of which carried anti-Israeli inscriptions.