Israel has completed successful tests of an advanced version of its David's Sling intermediate missile interceptor system that it is developing jointly with the United States, the Defense Ministry said on Wednesday.

The system is designed to shoot down rockets with ranges of 100 to 200 km (63 to 125 miles) such as those in the arsenal of Iranian-backed Hezbollah, a Lebanese group that last fought a war with Israel in 2006, or aircraft or low-flying cruise missiles.

An initial version of David's Sling completed testing in December 2015 and has been handed over to the Israeli air force but it has not yet been declared operational, a ministry official said.