JERUSALEM (AP) — Israel has called off a test of an advanced missile defense system, citing a communications malfunction.

The Defense Ministry said in a statement on Wednesday that the cancellation of the Arrow-3 trial "has no impact" on already operational Arrow-2 and Arrow-3 missile defense systems. The ministry canceled a similar trial in December.

Moshe Patel, head of Israel's missile defense arm, said that had "an Iranian missile" been launched at Israel, the Arrow-3 system would have still been used to intercept it.

Arrow-3 is part of the multi-layered system Israel is developing to defend against both short- and mid-range rockets fired from the Gaza Strip and Lebanon, as well as Iran's long-range missiles.

It was developed by Israel Aerospace Industries and U.S. aviation giant Boeing, and became operational in January 2017.

Copyright 2018 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.