MOSCOW, September 28 (RIA Novosti) - Iran has test launched the longest-range missile in its arsenal as tensions grow with the West over its nuclear program, national media said on Monday.

Iran test-fired a Sajjil surface-to-surface missile with a range of up to 2,000-2,500 kilometers, capable of striking Israel and parts of Europe.

The Islamic Republic started on Sunday large-scale missile drills, and has already conducted night-time test launches of the Shahab class short- and medium range ballistic missiles with multiple warheads.

The third stage of the Great Prophet IV exercises involved the launch of Shahab-1, Shahab-2 and Shahab-3 missiles with ranges of 350 km (217 miles) and 750 km (466 miles), and 2,100 km (1,300 miles), respectively.

During the first stage, Iran successfully tested short-range ground-to-ground Fateh-110, Tondar-69, and Zelzal-type missiles.

The missile defense drills are being held amid growing friction with Western powers over Iran's controversial nuclear program, after Tehran revealed last week that it was building a second uranium enrichment plant.