The Israeli Defence Ministry announced last Sunday it will upgrade their Iron Dome missile interceptor system, reports Allyn Fisher-Ila for Reuters.
The announcement says a series of successful tests of the system prompted the ministry to add a fifth set of rockets.
According to Reuters, it utilizes small radar-guided missiles to eliminate Katyusha-style rockets within 5 km (3 miles) and 70 km (45 miles) as well as mortar bombs while in mid-air.
New rocket batteries will be added to the system after upgrade tests are conducted. The tests were implemented in order to guarantee system performance and capabilities in light of persistent threats.
However, an exact deployment detail of the new unit was not revealed.
A senior Israeli official hinted last April that the new battery may be located in the greater Tel Aviv area.
Several Iron Dome batteries have been installed in Israel's southern region since 2011.
U.S. Congress approved the $205 million subsidy for Iron Dome in fiscal 2011.
Each unit is estimated at $50 million.